Longboat Key (Bayfront) seaweed today

Sargassum + FWC red tide, one combined report.

SEAWEED RIGHT NOW

None

Latest report: clear shoreline, no seaweed or red tide detected.

Clear: no seaweed piles, no red tide effects. Nothing to plan around.

Updated Jun 15

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What this means on the sand

Sargassum is a floating brown seaweed that drifts ashore from the Atlantic in pulses, heaviest from roughly May through August. Light levels mean scattered clumps you can walk around; heavy levels mean thick mats along the waterline, a sulfur smell as it breaks down, and tougher entry into the water.

On the Gulf coast this page also tracks red tide (Karenia brevis) from FWC sampling. Elevated red tide can mean respiratory irritation on the beach and dead fish in the surf; on high days, the score reflects it and this report names it.

ShoreScore folds this reading into Longboat Key (Bayfront)'s overall 0-100 score alongside live weather, surf, UV, and official water-quality testing, so one number tells you whether it's worth the trip.

Seaweed at nearby beaches

Lido BeachSiesta KeyTurtle Beach (Siesta Key)Fort De Soto North BeachNokomis BeachAll beaches

Also for Longboat Key (Bayfront): today's water quality and bacteria test →

Sources: NOAA and FWC, refreshed daily. Informational only, not for safety decisions.