Sargassum at Smathers Beach, Key West: today's report
First bulletin for this beach lands with tomorrow morning’s update.
Smathers Beach runs along the south shore of Key West, facing the Straits of Florida beside the airport road. This page gives the sargassum situation at Smathers Beach as recorded this morning, a rating from 0 to 5 that sums up the day, and a map that sets the beach against the other Keys locations we follow.
The update lands every morning, so the state of the sand is something you know before you set out rather than something you discover on arrival. Alongside the rating you get the recent trend, which tells you whether an episode is settling in or clearing, and often decides which Key West beach is worth the walk.
Smathers Beach on the sargassum map
What to know about this beach
The waterfront at Smathers faces due south, on the ocean side of Key West and at the very end of the island chain. In front of it lies the Straits of Florida, the corridor where the current runs north from the Caribbean carrying sargassum rafts. Nothing breaks that approach: the beach is long and straight, with no point or cove to deflect what an easterly or south-easterly wind pushes ashore.
That geometry has a practical effect. An arrival usually lands along the whole waterfront rather than in one pocket, and the picture can differ from one end to the other depending on the longshore current. The water just offshore is shallow and grassy, so stranded material sometimes mixes seagrass with sargassum, while the daily rating counts only the sargassum.
Frequently asked questions
Why does sargassum wash up at Smathers Beach?
It occupies the south shore of Key West, open to the Straits of Florida. Easterly and south-easterly winds drive rafts arriving from the Caribbean straight in, with no headland or offshore island to turn them away.
How do I check Smathers Beach before heading out?
Open the FanGass map in the morning. Smathers Beach carries a rating from 0 to 5, recalculated daily, with earlier readings beside it so you can see whether conditions are improving or worsening.
Is the whole beach ever in the same state?
Not always. The waterfront is long and the longshore current drops weed unevenly, so one section can be clear while another holds a thick line. The rating describes the overall condition of the site.
Which Key West beach can I try instead?
The island's other public beaches also face south, though their surroundings differ: Fort Zachary Taylor occupies the western point, swept by channel currents. The map shows them side by side each morning.