Sargassum Tracker

USF OOL Long Term Outlook

Jul 31, 2026
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Consistent with most previous years, total Sargassum amount in every region started to decrease in July, while the distribution patterns remained stable. This is a good sign. However, total amount in the Gulf still remained at a record high for July, and in other regions was only second to the historical record in 2025.

USF Sargassum Outlook 2026 - Bulletin 07

Coastal inundation and beaching events in most regions continued in July, including the southeast coast of Florida and around the Caribbean and Lesser Antilles islands.

SARGASSUM ABUNDANCE INTENSITY

Details

Looking ahead: Similar to previous years, Sargassum amounts in most regions will continue to decrease in the coming months until possibly November. Meanwhile, beaching events around the Caribbean and southeast coast of Florida will continue, but likely not as severe as in June - July. Because the peak month is over, 2026 is set to be the second-largest Sargassum year, second only to 2025. All previous monthly bulletins, as well as daily imagery, can be found under the Sargassum Watch System (SaWS). Meanwhile, high-resolution Sargassum maps for selected coastal regions are also available in near real-time under “Satellite Data Products => High Resolution” on the OOL Website.

Disclaimer

The information bulletin is meant to provide a general outlook of current bloom condition and future bloom probability for the Caribbean Sea. By no means should it be used for commercial purpose, or used for predicting bloom conditions for a specific location or beach. The authors of this bulletin, as well as Caricoos, USF and NASA, take no responsibility for improper use or interpretation of the bulletin. Any use of the image, data, or graph from this bulletin page in reports or publications should obtain permission from the USF OOL group.