Piles of sargassum seaweed are accumulating on the beaches of Florida's Key West. Scientists say the seaweed is expected to increase even more over the next few months.
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Sargassum seaweed washing up on Florida beaches has ebbed to levels normally seen in early fall, even below normal in some areas. The once-anticipated 5,000-mile-wide bog in the Atlantic and Caribbean has rapidly — and mysteriously — disappeared.
Substantial sargassum is expected in June in both the Caribbean Sea and Gulf of Mexico, according to the May report from the University of South Florida. That's no surprise to beachgoers who have been seeing the smelly seaweed on Florida beaches from Pensacola to Brevard County.
Florida's seaweed season typically runs from April until October, peaking in June and July. The seaweed comes in waves, depending on currents and wind direction. The seaweed itself is not harmful to humans, but decaying sargassum on beaches releases hydrogen sulfide that can impact people with breathing issues.
Bits of Sargassum seaweed are washing ashore around Avenida 16-18 on Tuesday, May 23, 2023. Giant blobs of Sargassum hug the shoreline next to the William O Lockhart Municipal Pier in Lake Worth Beach, Florida on June 1, 2023. Sargassum accumulates on the beach at Phipps Ocean Park Tuesday May 30, 2023 in Palm Beach.
Additionally, beaches on Florida's east coast, including Palm Beach, Fort Lauderdale, and the Miami Beach area, are also seeing mounds of sargassum wash ashore. According to a report from AccuWeather, it is also impacting the southern regions of Hispaniola as well as areas of Jamaica and Puerto Rico.
At this time, red tide is not present on St. Pete/Clearwater's beaches. Although many national news outlets reported about a massive seaweed or sargassum blob coming to Florida this summer, this is not affecting the beaches of St.Pete/Clearwater in any way.
Learn about sargassum (seaweed) on Miami-Dade County beachesIt provides crucial habitat for many marine species, including endangered sea turtles, which, upon hatching on our beaches, make their way out to the sargassum to spend their juvenile years feeding and growing amongst the seaweed mats.
As a result of this, Fort Lauderdale crews are out daily, scooping up the fresh sargassum from the beaches. They take truckloads of it to a park where the city repurposes it and by the time it decomposes, it has very little smell and becomes fertile soil.
Sargassum season in the Mexican Caribbean typically runs from May through October, with July and August generally being the worst months for its arrival.
That's because the seaweed will follow the Gulf Stream current, which moves around Cuba, past the Florida Keys and then makes its way around Miami and the east coast of Florida, its those beaches where the seaweed will likely wash ashore. It's a natural plant is not an invasive species.
“Sargassum normally does not accumulate in places like Sarasota Bay or Tampa Bay,” says Tomasko. “The biggest problem has been around the resort beaches in the Caribbean and Southeast areas, like Miami Beach.”
USF reports it remains difficult to predict exact timing and location for individual beaching events but substantial amounts of the seaweed are expected in May in both the Caribbean Sea and Gulf of Mexico. June is forecast to be the likely peak of the 2023 season, but impacts are expected to continue into July.
Currently, beach cams in Fort Myers Beach and Naples show clear shorelines with little to no sargassum. It is noted that 'Seaweed Season' just ended, which tends to appear on Florida beaches in the spring, with a peak in June.
In Grenada, Grand Anse regularly tops the list of the world's best beaches due to its crystal clear waters and its 2 kilometre long stretch of white sand dotted with palm trees. It's also blessedly free of sargassum seaweed.
Popular resort hubs, including Playa del Carmen and Tulum, have ramped up efforts to deter sargassum from affecting travelers. What is this? Both destinations have set up temporary barriers and hired more cleaners in an effort to attract more travelers.
Varadero is actually on the Atlantic Ocean, not the Caribbean. Sargassum has never, to my knowledge, been a problem in Varadero. It is, indeed, a beautiful beach, and I would have no worries at all, on that particular score.
The sargassum seaweed that is washing up in mass amounts on South Florida beaches is carried from off the coast of Brazil by oceanic currents, finally arriving via the Gulf Stream to be blown ashore by the prevailing onshore winds.
Panama City Beach seaweed and algae sometimes make an appearance as unwelcome guests on the (usually) sugar sand beaches and emerald green waters of PCB. Seaweed, algae blooms, and sargassum can wash up on the beaches across the area.