# Sargassum Monitoring

> OFFICIAL MAP & FORECASTS


## Posts

- [Sargassum-Related Pollution: The Key Role of H₂S Monitoring](https://sargassummonitoring.com/sargassum-related-pollution-the-key-role-of-h2s-monitoring/): Photo of the French army coming to pick up sargassum in 2018 – 7 ppm of H₂S Measured on a Sargassum Pile in Playa del Carmen: A Concerning Level A recent scientific report filmed in Playa del Carmen, Mexico, revealed a concentration of 7 ppm of hydrogen sulfide (H₂S) measured directly above a sargassum pile. This toxic gas, naturally released during the decomposition of the algae, can pose serious health risks, even at low levels. What Does This Level Mean ? H₂S is an invisible gas with a rotten egg odor, which disappears at higher concentrations by paralyzing the sense […]
- [Vacationers faced with backhoe loaders: the abuses of Sargassum cleaning](https://sargassummonitoring.com/the-abuses-of-sargassum-cleaning/): When the Solution Becomes a Danger: The Risks of Mechanical Sargassum Removal on Beaches. In many tourist areas affected by massive sargassum landings, local authorities have chosen the most visible—and the fastest—solution: using heavy machinery to clear the beaches. Backhoes, bulldozers, and other mechanical shovels roam the sand daily, their buckets filled with brown algae, aiming to “make the beach clean.” But at what cost? Heavy Machinery Among Vacationers: A Dangerous Absurdity Esmaragdo Camaz The footage we recently received is unambiguous: backhoes maneuver just a few meters from tourists lying on the sand. Children can be seen running carefree between […]
- [Sargassum: A New Study Reveals the True Cause of Massive Blooms](https://sargassummonitoring.com/the-true-cause-of-massive-blooms/): “A New Study Reveals the Triggering Factor Behind Massive Sargassum Blooms” Since 2011, massive sargassum strandings have disrupted marine ecosystems and coastal communities in the tropical Atlantic. A recent study, published in Communications Earth & Environment, highlights a key element behind this phenomenon: an extreme North Atlantic Oscillation (NAO) event in 2009-2010. An Ecological Shift in 2010 The study demonstrates that this exceptional climatic event altered ocean currents, transporting sargassum from the North Atlantic subtropical gyre to the tropical Atlantic. This shift marked a true ecological tipping point, explaining the massive presence of sargassum in this region since 2011. Photo: […]
- [Sargassum 2025: A Decisive Year for the Atlantic and the Caribbean](https://sargassummonitoring.com/sargassum-2025-a-decisive-year-for-the-atlantic-and-the-caribbean/): Outlook of 2025 Sargassum bloomsA perspective for the Caribbean Sea and Gulf of MexicoJanuary 6, 2025, by University of South Florida Optical Oceanography Lab(bbarnes4@usf.edu, yuyuan@usf.edu, huc@usf.edu) The map below shows average Sargassum abundance for the month of December 2024, with warm colors representing higher abundance. The Sargassum abundance for each region is compared with historical values in the same month of 2011 – 2023 in the whisker box plot below, where horizontal bars in each vertical box indicate minimum, 25%, 50%, 75%, and maximal historical values, respectively. Total Sargassum amount in the Gulf of Mexico, western Caribbean Sea, and eastern […]
- [2025: Toward a New Sargassum Crisis in Mexico ?](https://sargassummonitoring.com/2025-toward-a-new-sargassum-crisis-in-mexico/): Puerto Morelos, Quintana Roo. The beaches of Mexico, natural treasures cherished by millions of visitors, are facing a growing threat: sargassum. This macroalgae, which accumulates annually along the shores of the Mexican Caribbean, could reach levels in 2025 not seen since the critical crisis of 2015. This warning, issued by Brigitta Ine Van Tussenbroek, head researcher at the Academic Unit of Reef Systems in Puerto Morelos, highlights the ecological challenges ahead. “Since 2011, massive sargassum arrivals have eroded our beaches and destroyed essential ecosystems. If nothing is done, 2025 could surpass the critical levels of 2015,” she warns. Beaches in […]
- [Effectiveness of sargassum barriers](https://sargassummonitoring.com/effectiveness-of-sargassum-barriers/): How to assess the effectiveness of a sargassum barrier? Lying on the beach under the Caribbean sun, you have plenty of time to observe the barriers that your hotel or municipality has installed to protect your beach from massive arrivals of sargassum seaweed. You know these barriers are necessary to prevent an economic, health, and ecological disaster, but since your beach is still covered with seaweed, you’re wondering: is this barrier really effective? Sargassum Monitoring® has investigated to help you observe and better understand. To begin, here’s the legend of the colors and symbols we used: Image 1/ No Sargassum […]
- [The Sargassum Podcast : interview with the founder of Sargassum Monitoring®](https://sargassummonitoring.com/the-sargassum-podcast-interview-with-the-founder-of-sargassum-monitoring/): Florence Ménez : Teacher-researcherClio Maridakis : Algae diversity & Sargassum influx | PhD Student – Environmental & Circular Economy Engineer | Co-host of The Sargassum PodcastFranziska Elmer : Head of Science at Seafields /Research Fellow at The School for Field Studies/ Host and Executive Producer of The Sargassum Podcast / Island Innovation Ambassador / Climate PirateChristine Jimenez-Mariani : founder of Sargassum Monitoring® Here is a better transcript of the video text : Franziska: Hello everyone! How are you? It’s been months since we had a conversation in French. So, Clio, how is it in France? Clio: Yes, it’s nice to […]
- [Daily Bulletin - SARGASSUM EVALUATION MEXICAN CARIBBEAN](https://sargassummonitoring.com/daily-bulletin-sargassum-evaluation-mexican-caribbean/): – As of April 14th, about 1,675 tons of sargassum cover the Mexican Caribbean.– Favorable conditions without sargassum are in Isla Mujeres, with little in Cancún, Cozumel, and Puerto Morelos today.– Around 10 tons of sargassum are expected from Xcalak to Mahahual soon.– A 73-ton algal conglomerate 170 km off Quintana Roo’s coast may reach Tulum, Cozumel, and Playa del Carmen in 72 hours.– The alert level is “2,” classified as “VERY LOW.”– Sargassum levels are low for the south and central zones, very low for the north.– Currents range from northwest to north, and winds are at 9 to […]
- [USA - Puerto Rico: Firm Rejection of Sargassum Use as Fertilizer](https://sargassummonitoring.com/usa-puerto-rico-firm-rejection-of-sargassum-use-as-fertilizer/): In an effort to address the challenges posed by massive accumulations of Sargassum on the coast of Puerto Rico, the Department of Natural and Environmental Resources (DRNA) has recently unveiled its final management protocol. A key decision in the protocol is the formal exclusion of Sargassum use for agricultural or human consumption purposes, including composting. This decision, based on studies conducted in other countries, highlights the presence of heavy metals such as arsenic and cadmium in soils fertilized by Sargassum. Ricardo Colón Rivera, technical advisor of the Bureau of Protected Natural Areas of the DRNA, emphasized that Sargassum is currently […]
- [Is there still a Sargassum Season?](https://sargassummonitoring.com/is-there-still-a-sargassum-season/): This is the question that more and more tourists are asking following announcements of the “End of Sargassum Season” in the press and social media, while images of invaded beaches are still circulating. But when is the “Sargassum Season” anyway? A search on the Internet reveals very different periods associated with the “Sargassum Season” in various Caribbean regions, but the reality is more complex. Announced Temporal Distribution in Different Regions: Mexico: April to August / March to September Guadeloupe: June to July / April to September / June to August Martinique: May to November Punta Cana: September to January / […]
- [Record Sargassum Proliferation in the Tropical Atlantic Ocean – Sargassum Monitoring Predictions](https://sargassummonitoring.com/record-sargassum-proliferation-in-the-tropical-atlantic-ocean-sargassum-monitoring-predictions/): This week, distinguished researchers from the University of South Florida unveiled a startling discovery: an unprecedented proliferation of Sargassum in the tropical Atlantic Ocean. In the vicinity of the junction between the Caribbean Sea and the ocean, an exceptional accumulation of nearly 5 million tons of Sargassum algae was measured last December, marking a dramatic increase compared to the 1 million tons recorded at the same period the previous year. That’s a fivefold surge! Scientists, who had anticipated an increase in November, underscored the magnitude of this growth, labeling the abundance of December 2023 as a historic record. This finding […]
- [Sargassum seaweed in San Crisanto "scares away" beachgoers](https://sargassummonitoring.com/sargassum-seaweed-in-san-crisanto-scares-away-beachgoers/): Sargassum in San Crisanto: When Marine Algae Drives Away Beachgoers with its Lingering Odor The passage of cold front 17 caused the ocean to expel seaweed, resulting in a strong stench in San Crisanto. Following a recent influx of seaweed on the North coast, expelled by the ocean after the passage of cold front number 17, a strong stench has now emerged due to the decomposition of this vegetation accumulated in large quantities on the beach shoreline. Visitors and residents in the summer houses in the center noted that the smell of seafood is very strong when the wind begins […]
- [Ecological Sandals: An Innovative Solution to Fight Sargassum Invasion](https://sargassummonitoring.com/ecological-sandals-innovative-solution-sargassum/): Social media has recently circulated an intriguing announcement: an entrepreneur from Quintana Roo, Mexico, claims to have found a creative solution to the global issue of sargassum. These invasive brown algae affect over 30 Caribbean countries, posing a major ecological threat. This Mexican entrepreneur asserts to have developed sandals made from these algae, offering an opportunity to turn this ecological disaster into an opportunity! The Mexican company would have collaborated with laboratories and specialized businesses to create an innovative product. After a year of development in collaboration with influential partners, the entrepreneur explains the manufacturing process. Sargassum freshly harvested from […]
- [The Mysterious Sargassum Algae: An Ecological Enigma in the Oceans](https://sargassummonitoring.com/mysterious-sargassum-ecological-enigma-oceans/): The Mystery of Sargassum Algae: How They Thrive and What Challenges They Pose Introduction Sargassum algae are large floating seaweeds that provide a habitat for a variety of marine animals and play a crucial role in the ocean ecosystem. However, over the past few years, a massive belt of Sargassum algae, known as the Great Atlantic Sargassum Belt (GASB), has invaded the tropical waters of the Atlantic and the Caribbean. This proliferation has had detrimental effects on coastlines, coral reefs, and sea turtles, while also posing economic challenges for tourism-dependent regions. Why Did GASB Appear? The GASB emerged following unusual […]
- [Scientists advise avoiding groundings with floating barriers to protect beaches.](https://sargassummonitoring.com/scientists-advise-avoiding-groundings-with-floating-barriers-to-protect-beaches/): A recent scientific study validates the proactive and cautious approach adopted by local authorities in Guadeloupe. The installation of barriers diverting sargassum seaweed banks emerges as the best option, according to its findings. These installations limit strandings and, consequently, metal concentrations on exposed coasts. The deployment of these diverting barricades is accelerating across the Guadeloupean territory to combat sargassum seaweed strandings, with varying degrees of success. Picture: Sargabarriers, Floating Barriers by The Ocean Cleaner .fr Nevertheless, this initiative is encouraged by a recent scientific study published in “Environmental Sciences and Pollution Research,” which confirms the effectiveness of “proactive policies in […]
- [Sargassum Storage Sites](https://sargassummonitoring.com/sargassum-storage-sites/): Toxic Threat: Alarming Levels of Arsenic and Sodium Chloride Found in Majority of Sargassum Storage Sites Arsenic and Excessive Sodium Chloride Found in 80% of Sites… BRGM’s final report on the environmental impact of sargassum storage sites is highly concerning. The standout figure from this study is certainly alarming. 83% of the analyzed sites showed arsenic exceedances, whether in water or soil. This metalloid is extremely toxic, and the thresholds set by regulations for this type of inert waste storage facility are consistently surpassed. For example, stagnant waters in contact with Raisins Clairs, Anse Maurice, Anse du Belley, and Cap […]
- [Sargassum: Understanding the Health Risks](https://sargassummonitoring.com/sargassum-understanding-the-health-risks/): Recent media reports have alerted us to the impending arrival of the largest Atlantic sargassum belt ever recorded. Stretching over 5,000 miles and encircling the Gulf of Mexico and mid-Atlantic, this mass of leafy, buoyant algae is expected to wash ashore on Florida’s beaches and other coastal areas in the Gulf of Mexico and the Caribbean by mid-summer. While much attention has been given to the environmental impact of sargassum, it is crucial to consider the potential health hazards it poses to individuals, especially those with asthma or respiratory conditions. As these masses of seaweed begin to decompose approximately 48 […]
- [Can Sargassum Seaweed stop Hurricanes ?](https://sargassummonitoring.com/can-sargassum-stop-hurricanes/): There is a lot of seaweed in the Atlantic basin, but is it enough to stop hurricanes? Is that even possible? The sargassum stretches from Africa to the Caribbean, and even into the Gulf of Mexico. In this video, Brian Shields “Mr. Weatherman” explore the impacts it has on water temperatures and developing tropical storms and hurricanes ! The answer on video :
- [The Current Outlook for Sargassum on Mexican Beaches](https://sargassummonitoring.com/outlook-for-sargassum-on-mexican-beaches/): Miami.- The sargassum belt that threatened to ruin the beaches of the Gulf of Mexico and the Caribbean this summer is significantly decreasing, and scientists from Florida who produce a monthly report on this natural phenomenon of marine algae blooming predict that it will further diminish or remain stable in the coming months. The Optical Oceanography Laboratory at the University of South Florida (USF) confirms in its latest report the significant decrease of sargassum in the Gulf of Mexico and the Caribbean during June, while in the Central-Western Atlantic, it continued to increase at a slower pace. “The increase in […]
- [A new voice to speak out loud about Sargassum Seaweed](https://sargassummonitoring.com/voice-speak-about-sargassum-seaweed/): The mundial phenomena of Sargassum Seaweed invasion is drawing more and more attention from the population. A new voice to talk about the matter to the world is the one of Brian Shields in his very interesting podcast named Earth QC, about occuring natural events such as Earthquakes, Tsunamis, Volcanoes, Wildfires, and Meteors. We definitely liked the idea of Brian Shields – also known as Mr Weatherman on wftv9 – to help the people follow the journey of the algae and show evidences of the damages all along the coast of the Caribbean. He does the job perfectly and we can definitely tell […]
- [Algae and Marine Plants Show High Concentration of Microplastics, Reveals Study](https://sargassummonitoring.com/algae-show-high-concentration-microplastics/): A recent study conducted by researchers at the Alfred Wegener Institute paints a bleak picture of pollution levels in the oceans. The focus of their research was the alga Melosira arctica, which thrives beneath the Arctic ice. Initially thought to be protected from human pollution, this alga serves as the sole source of food for a diverse marine fauna in the Arctic regions. As a central link in the Arctic marine ecosystem, Melosira arctica occupies the starting point of the food chain. However, upon closer examination, scientists made a disconcerting discovery. Their findings, published in a recent study, reveal that […]
- [Mexico : SARGASSUM DOES NOT TURN INTO SAND](https://sargassummonitoring.com/sargassum-not-turn-into-sand/): The sargassum, a macroalgae that has invaded the beaches of Quintana Roo, has generated numerous myths regarding its composition and management. In this article, we will debunk one of the most deeply rooted misconceptions: sargassum does not turn into sand. According to data from the Institute of Engineering at UNAM, sargassum has a moisture content of 90.7% and a high volatile fraction of 82.8%. This clearly demonstrates that the idea of it transforming into sand is completely false. However, there are two facts that can lead to confusion: The branched structure of sargassum, composed of stems, leaves, vesicles, and spines […]

## Pages

- [Official Map 2026](https://sargassummonitoring.com/official-map-2026/): Official Sargassum Map Daily Updated ! Immerse yourself in nature’s wrath with our interactive map. Explore these once idyllic tropical paradises, now overrun by the inexorable tide of sargassum. Once pristine sandy beaches are regularly overrun by this nightmarish brown algae. Our map plunges you into the heart of this environmental catastrophe, making you feel the urgency of the situation. Browse breathtaking photos of sargassum-infested beaches, silent witnesses to the imminent destruction of fragile marine ecosystems. Time is running out; let’s act together ! Given the scale of this phenomenon, everyone’s participation is crucial. To assist governments and researchers in […]
- [Privacy Policy for SargApp](https://sargassummonitoring.com/privacy-policy-for-sargapp/): Effective date: May 2025 If you are located in the European Economic Area (EEA), we will request your consent to display personalized advertisements. You can opt out of personalized advertising by visiting Google Ads Settings. AdMob may use cookies or similar technologies to collect and store information.
- [FAQ](https://sargassummonitoring.com/faq/): Sargassum Invasion: Frequently Asked Questions (FAQ) What is Sargassum ? Go further • Regularly visit sargassummonitoring.com for maps, alerts, and forecasts.• Join the Sargassum Monitoring movement to actively participate in sargassum monitoring and management—together, let’s protect our oceans. IMPORTANT: The science and management of sargassum are constantly evolving, leading to regular updates to our Frequently Asked Questions (FAQ). As an independent organization, Sargassum Monitoring is committed to providing reliable and up-to-date information on this complex phenomenon. We encourage you to check our FAQ regularly to stay informed about the latest developments and updated answers to your questions.
- [Official Map 2025](https://sargassummonitoring.com/official-map-2025/): Official Sargassum Map Daily Updated ! Immerse yourself in nature’s wrath with our interactive map. Explore these once idyllic tropical paradises, now overrun by the inexorable tide of sargassum. Once pristine sandy beaches are regularly overrun by this nightmarish brown algae. Our map plunges you into the heart of this environmental catastrophe, making you feel the urgency of the situation. Browse breathtaking photos of sargassum-infested beaches, silent witnesses to the imminent destruction of fragile marine ecosystems. Time is running out; let’s act together ! Given the scale of this phenomenon, everyone’s participation is crucial. To assist governments and researchers in […]
- [Official Map 2024](https://sargassummonitoring.com/official-map-2024/): Sargassum map 2024 You are about to consult the official map of Sargassum 2024.The pictures and videos are dated and accurately positioned based on the shooting location.This map serves as a record of arrivals and has been updated through the efforts of citizen science participation. It’s more than just a guide to choosing your next vacation destination in turquoise waters lined with white sand.It’s an invitation to discover, preserve, and understand the Sargassum bloom that the Atlantic-Caribbean region has been experiencing annually since 2011.The official Sargassum map 2024 bears witness to this Sargassum seaweed phenomenon, which is not natural but […]
- [About Us](https://sargassummonitoring.com/about-us-introduction-to-sargassum-monitoring/): Introduction to Christine J. Mariani and Sargassum Monitoring® Christine J. Mariani, a former sailor committed to ocean preservation, has dedicated her life to combating marine pollution. Since 2013, she has been based on the Riviera Maya in Mexico, where she has confronted the invasion of sargassum seaweed. In 2015, Ph. D. Brian Lapointe of FAU (Florida Atlantic University – Harbor Branch) alerted her to the urgency of taking action. In response, she founded Sargassum Monitoring® in 2018, a project she manages on a voluntary basis, seven days a week, to provide real-time data on sargassum arrivals. In 2024, alongside Ph. D. […]
- [Terms and Conditions](https://sargassummonitoring.com/terms-and-conditions/)
- [Sargassum forecast Jamaica](https://sargassummonitoring.com/sargassum-forecast-jamaica/): Sargassum Beaching Risk & Presence for Jamaica Map provided by JSEAS Jamaica Sargassum Early Advisory System & MONAGIS University of Southampton Valid for the month: June 2024 Zone: O = Offshore, N = Nearshore Consult other Forecasts
- [Official Map 2023](https://sargassummonitoring.com/map-2023/): Sargassum map 2023 You are about to consult the official map of Sargassum 2023.The pictures and videos are dated and accurately positioned based on the shooting location.This map serves as a record of arrivals and has been updated through the efforts of citizen science participation. It’s more than just a guide to choosing your next vacation destination in turquoise waters lined with white sand.It’s an invitation to discover, preserve, and understand the Sargassum bloom that the Atlantic-Caribbean region has been experiencing annually since 2011.The official Sargassum map 2023 bears witness to this Sargassum seaweed phenomenon, which is not natural but […]
- [Sargassum-Free Map](https://sargassummonitoring.com/sargassum-free-map/): Sargassum-Free Hotels Map Welcome to our new Sargassum-Free* Hotels** Map. This map is your ideal companion in the quest for dream destinations where the beaches are always pristine, and the waters crystal clear, without the inconveniences of sargassum. Let us guide you to unforgettable beach getaways by highlighting tourist accomodations that are in unaffected areas or have made environmental preservation and traveler satisfaction their top priority. Our “Sargassum-Free Hotels Map” brings together these rare gems that have taken exceptional measures to ensure immaculate beaches year-round. Explore our map to: When you choose accommodation from our “Sargassum-Free Hotels Map”, you’re doing […]
- [Contact Hotels](https://sargassummonitoring.com/contact-hotels/): 7 Powerful reasons to be on our Sargassum-Free Hotels Map Contact Form Complete the registration form with your establishment’s details to enable us to provide you with our finest offer. Please, fill in One form per tourist establishment.
- [Sargassum forecast Dominican Republic - Haiti](https://sargassummonitoring.com/sargassum-forecast-republica-dominicana/): Punta Cana – Bayahibe – Isla Saona – Samana – Cap Cana – Haiti Map provided by CARICOOS Updated on March 14, 2026 CARICOOS is the regional association for the coastal and ocean observing system for Puerto Rico and the U.S. Map provided by the Dominican Government and ANAMAR Map validity date: March 12 to March 17, 2026 Updated on March 16, 2026 Notes: – CLS – SAMtool / Sargassum trajectory forecast, Dominican Republic area. – The image is shown “as is”, with no guarantee of reliability or quality for your particular use. – Cloud cover interferes with sargassum detection. […]
- [Sargassum forecast Puerto Rico - Vieques - US Virgin Islands](https://sargassummonitoring.com/sargassum-forecast-puerto-rico-usa/): Map provided by CARICOOS Updated on March 16, 2026 How are Sargassum stranding forecasts calculated ? Sargassum movement forecasting method : Each red dot corresponds to a sargassum patch identified by the “AFAI” thanks to satellites. The sargassum layer is influenced by environmental conditions in the area, such as currents and winds. Based on current forecasts from “HYCOM” and wind forecasts from “NCEP”, it is possible to estimate the trajectory of the sargassum and its possible arrival along Caribbean beaches. The image in this animation corresponds to 7 days, as you can see from the dates at the top of […]
- [Sargassum forecast Florida Bahamas - USA](https://sargassummonitoring.com/sargassum-forecast-florida-usa/): How are Sargassum stranding forecasts calculated ? Sargassum movement forecasting method : Each red dot corresponds to a sargassum patch identified by the “AFAI” thanks to satellites. The sargassum layer is influenced by environmental conditions in the area, such as currents and winds. Based on current forecasts from “HYCOM” and wind forecasts from “NCEP”, it is possible to estimate the trajectory of the sargassum and its possible arrival along Caribbean beaches. The image in this animation corresponds to 7 days, as you can see from the dates at the top of the image. These forecasts give a general indication, but […]
- [Official Map 2022](https://sargassummonitoring.com/official-map-2022/): Sargassum map 2022 You are about to consult the official map of Sargassum 2022.The pictures and videos are dated and accurately positioned based on the shooting location.This map serves as a record of arrivals and has been updated through the efforts of citizen science participation. It’s more than just a guide to choosing your next vacation destination in turquoise waters lined with white sand.It’s an invitation to discover, preserve, and understand the Sargassum bloom that the Atlantic-Caribbean region has been experiencing annually since 2011.The official Sargassum map 2022 bears witness to this Sargassum seaweed phenomenon, which is not natural but […]
- [Official Map 2021](https://sargassummonitoring.com/official-map-2021/): Sargassum map 2021 Welcome to the discovery of the Official Sargassum Map for 2021 ! Get ready to immerse yourself in a world of fascinating information. The photos and videos you’ll find here are meticulously dated and geolocated, offering exceptional and unique precision. This map is more than just a directory to choose your next vacation destination amidst turquoise waters and white sandy beaches. It serves as a true invitation to explore, preserve, and understand the annual invasion of Sargassum algae that the Atlantic-Caribbean region has been experiencing since 2011. The Sargassum Map of 2021 bears witness to the Sargassum […]
- [Official Map 2020](https://sargassummonitoring.com/official-map-2020/): Sargassum map 2020 Welcome to the discovery of the 2020 Sargassum Monitoring Map ! Get ready to immerse yourself in a world rich in captivating information.The pictures and videos you will find here are meticulously dated and geolocated, offering exceptional and unparalleled precision. However, this map goes far beyond merely guiding you in choosing your next vacation destination on a paradise beach in the Caribbean.It represents a true invitation to explore, preserve, and understand the recurring and inexorable progression of the invasion of brown algae that the Caribbean region has been enduring since 2011.The 2020 Sargassum Map bears witness to […]
- [Official Map 2019](https://sargassummonitoring.com/official-map-2019/): Sargassum map 2019 Welcome to the 2019 Sargassum seaweed Map! Get ready to discover the reality behind the explosive growth of these naturally occurring algae.The images and videos you will find here may be shocking, but it is indeed the reality of an uncontrollable situation since 2011. Please note that this map goes far beyond simply guiding you in choosing your next vacation destination on a paradise beach in the Caribbean.It represents a genuine invitation to explore, preserve, and understand the recurring and inevitable progression of the invasion of brown algae in over 30 Caribbean countries.The 2019 Sargassum bloom Map […]
- [Official Map 2018](https://sargassummonitoring.com/official-map-2018/): Sargassum map 2018 Welcome to the 2018 Sargassum Monitoring Map ! The year 2018 witnessed a record influx of sargassum. It was during this year that Sargassum Monitoring created the first map aimed at meticulously documenting the paradisiacal beaches now buried under tons of foul-smelling algae. At that time, information was not widely circulated, and each country believed it was the sole victim of this phenomenon, which turned out to have far more consequences than just a visual nuisance for vacationers. Since 2011, this steadily growing phenomenon has remained beyond our control, and more importantly, it continues to worsen! Because […]
- [Press Review](https://sargassummonitoring.com/press-review/)
- [Sargassum for Dummies](https://sargassummonitoring.com/sargassum-for-dummies/): Having grown up near the coastline, I’ve become accustomed to encountering Sargassum either drifting on the water’s surface or washed ashore along the beach. The presence of Sargassum and various other seaweeds and plants has always been a natural part of the marine and coastal environment. However, the unprecedented influx of Sargassum into the Great Caribbean region since 2014, along with its resulting consequences, has sparked significant concern. Researchers are currently engaged in studies to comprehend this phenomenon and determine effective strategies for managing it – a challenging endeavor, to say the least. I had the privilege of attending a […]
- [Contact](https://sargassummonitoring.com/contact/)
- [News](https://sargassummonitoring.com/news/)
- [Sargassum](https://sargassummonitoring.com/sargassum/): Know the Sargassum Seaweed There are dozens of Sargassum algae. Thanks to the Sargassum citizen science network, scientists and researchers have been able to highlight the three models that are invading the Caribbean. Under optimal conditions, they can double in volume in a week ! Sargassum fluitans have thorny stems whereas, Sargassum natans have smooth stems. Bladder and blade attributes differ widely among forms. (A) For Sargassum fluitans III, thorns on stem are present, blades are wide, bladders are devoid of spines, and bladders are oblong. (B) For Sargassum natans I, stem is smooth, blades are narrow, spines are present on bladders, and bladders are spherical (C) For Sargassum natans VIII (photo credit: […]
- [Forecast Sargassum Seaweed Riviera Maya Mexico](https://sargassummonitoring.com/forecast-sargassum-mexico-riviera-maya/): Cancun – Tulum – Playa del Carmen – Puerto Morelos – Holbox How are Sargassum stranding forecasts calculated ? Sargassum movement forecasting method : Each red dot corresponds to a sargassum patch identified by the “AFAI” thanks to satellites. The sargassum layer is influenced by environmental conditions in the area, such as currents and winds. Based on current forecasts from “HYCOM” and wind forecasts from “NCEP”, it is possible to estimate the trajectory of the sargassum and its possible arrival along Caribbean beaches. The image in this animation corresponds to 7 days, as you can see from the dates at […]
- [Belize Sargassum forecast](https://sargassummonitoring.com/belize-sargassum-forecast/): NMS – National Meteorological Service of Belize Updated on March 17, 2026 Disclaimer: The information is provided with the understanding that The National Meteorological Service makes no warranties, either expressed or implied, concerning the accuracy, completeness, reliability, or suitability of this product.The information may be used freely by the public with appropriate acknowledgement of its source, but shall not be modified in content and then presented as original material. Consult other Forecasts
- [Meteo France forecast](https://sargassummonitoring.com/meteo-france-forecast/): Météo France French West Indies – Caribbean Updated on March 16, 2026 Stranding risk map for the next 4 days : Stranding risk map for the next 4 days : Stranding risk map for the next 4 days : Stranding risk map for the next 4 days : Source: Météo France – Saint Martin/Saint Barthelemy – Guadeloupe – Martinique – Guyane Sargassum Monitoring®, a verification site for Météo France Consult other Maps
- [Sargassum in the Atlantic and the Caribbean](https://sargassummonitoring.com/map-of-sargassum-from-usf-saws/): Atlantic evolution of the Sargassum belt Map provided by Sailgrib.com Latest Map from USF – SaWS Legend of the USF-SaWS Map : Images are an interpretation of satellite images. Updated on March 16, 2026 Sargassum map – Caribbean Sea How are Sargassum stranding forecasts calculated ? Sargassum movement forecasting method : Each red dot corresponds to a sargassum patch identified by the “AFAI” thanks to satellites. The sargassum layer is influenced by environmental conditions in the area, such as currents and winds. Based on current forecasts from “HYCOM” and wind forecasts from “NCEP”, it is possible to estimate the trajectory […]
- [Home](https://sargassummonitoring.com/): Sargassum Monitoring the N°1 citizen science network | Maps & Forecasts ECOLOGICAL, HEALTH & ECONOMIC EMERGENCY Sargassum seaweed, originally beneficial to the marine ecosystem, has been spreading dangerously since 2011 due to human pollution. When it reaches the coasts of 43 countries to date, it decomposes and decimates fauna, flora and coral, with serious consequences for the environment, the economy and health. Urgent solutions are needed, for which scientists, governments and companies need more information. WE NEED YOU ! Join SARGoo and the World’s N°1 Citizen Science Network Dedicated to Monitoring Sargassum Seaweed. 🔴 Hi, I’m SARGoo – and I need your […]
- [Privacy Policy](https://sargassummonitoring.com/privacy-policy/): Who we are Our website address is: https://www.sargassummonitoring.com. Comments When visitors leave comments on the site we collect the data shown in the comments form, and also the visitor’s IP address and browser user agent string to help spam detection. An anonymized string created from your email address (also called a hash) may be provided to the Gravatar service to see if you are using it. The Gravatar service privacy policy is available here: https://automattic.com/privacy/. After approval of your comment, your profile picture is visible to the public in the context of your comment. Media Visitors to our site must […]


[comment]: # (Generated by Hostinger Tools Plugin)