Fernandina Main Beach seaweed today

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 Jul 30

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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.

ShoreScore folds this reading into Fernandina Main Beach'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

Fort Clinch Beach · Amelia Island (Peter's Point) · American Beach · Hanna Park (Mayport) · Atlantic Beach · All beaches

Also for Fernandina Main Beach: today's water quality and bacteria test →

Source: NOAA, refreshed daily. Informational only, not for safety decisions.