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Sargassum at Founders Park Beach, Islamorada: today's conditions

Today, September 1

First bulletin for this beach lands with tomorrow morning’s update.

Founders Park Beach belongs to the village park of Islamorada, on Plantation Key, and faces Florida Bay rather than the Atlantic, on the sheltered side of the island chain. The made beach looks northwest and encloses a calm swimming area.

On this page you get sargassum at Founders Park for the current day: the 0 to 5 rating, a plain description of conditions, and the FanGass map setting the beach against ocean-side spots in the same village. It is refreshed each morning, which beats relying on how things looked on an earlier visit.

Founders Park Beach on the sargassum map

What to know about this beach

Founders Park holds an unusual position. The chain of islands stands between Florida Bay and the Atlantic, and the Atlantic is where sargassum rafts travel. The heavy arrivals that hit the ocean side do not come straight in here; what does get through passes between the keys with wind and tide, and generally in smaller quantity.

The northwest orientation completes the picture. The beach looks over shallow water toward the inside of the bay, which makes it most responsive to winds out of the north and west, common when winter fronts sweep across. For much of the rest of the year the prevailing breeze comes from behind the shoreline and pushes floating material away from the sand, though the daily score still catches the exceptions.

Frequently asked questions

Is Founders Park less affected than ocean-side beaches?

As a rule, yes. The island chain separates Florida Bay from the Atlantic, where the rafts move. What reaches the bay filters through the channels in smaller amounts, but the daily observation still matters.

How should I check before coming to swim?

The FanGass map shows a 0 to 5 rating and the observed condition for Founders Park every morning. Compare it with nearby ocean beaches: the gap between the two sides of the island is often striking.

Which winds bring weed to this side?

North and west flows behind cold fronts push water toward this northwest-facing beach in the cooler months. Through the rest of the year the prevailing wind tends to blow offshore here and carry material away.

Where do I go for an ocean beach nearby?

The Atlantic side of Islamorada includes Anne's Beach on Lower Matecumbe, roughly twenty minutes south by road. Its exposure is entirely different, so it is worth reading both pages before choosing.

Nearby beaches

All Florida beaches

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Methodology & transparency — FanGass is a free service published by the Katchak agency and created by Morgan Haillus. Every morning, each beach’s 0-to-5 score is recomputed by cross-checking official bulletins (Météo-France, NOAA, University of South Florida), satellite imagery of the offshore rafts, and on-the-ground user reports.