Memorial Day in Palm Beach County usually means sun, sand, surf and a kickoff to the summer season where families flock to the shore, coolers in tow. But this year, something else is riding the waves: sargassum. WPTV’s Joel Lopez hit the sand to see just how much is piling up. The brown, floating seaweed has been washing up in thick clumps along stretches of shoreline from Jupiter to Lake Worth Beach.

Sargassum seaweed hits Palm Beach County beaches Memorial Day 2026