Sand Key Park 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
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 Sand Key Park'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
Clearwater BeachClearwater Beach (Mandalay)Indian Rocks BeachHoneymoon IslandMadeira BeachAll beaches
Also for Sand Key Park: today's water quality and bacteria test →
Sources: NOAA and FWC, refreshed daily. Informational only, not for safety decisions.