Neptune Beach seaweed today
Live sargassum report.
SEAWEED RIGHT NOW
Moderate
Latest report: moderate sargassum.
Patches on the sand and mats drifting in the water. Expect to pick your spot, and a low-tide smell up close.
No red tide effects expected.
Updated Jul 30
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 Neptune 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
Atlantic BeachJacksonville BeachHanna Park (Mayport)Ponte Vedra BeachAmerican BeachAll beaches
Also for Neptune Beach: today's water quality and bacteria test →
Source: NOAA, refreshed daily. Informational only, not for safety decisions.