Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM Marine Forecast

NOAA marine forecast

Text forecast

Updated 2:11am EDT Oct 11, 2026

Small Craft Exercise Caution In Effect Until 2 Pm Edt This Afternoon

Today

Southwest winds 15 to 20 knots, becoming west 10 to 15 knots this afternoon. Seas 3 to 5 feet, occasionally to 6 feet. Wave Detail: South 4 feet at 6 seconds and northeast 2 feet at 8 seconds. Intracoastal waters choppy. A chance of showers with a slight chance of thunderstorms this morning.

Tonight

West winds 10 to 15 knots. Seas 3 to 4 feet, occasionally to 5 feet. Wave Detail: Southeast 3 feet at 7 seconds and west 2 feet at 3 seconds. Intracoastal waters a moderate chop.

Monday

Northwest winds 10 to 15 knots, diminishing to 5 to 10 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail: Northwest 2 feet at 3 seconds and southeast 2 feet at 7 seconds. Intracoastal waters a moderate chop.

Monday Night

Northwest winds 5 to 10 knots. Seas 2 to 3 feet.

Tuesday And Tuesday Night

Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at 3 seconds and east 2 feet at 8 seconds. Intracoastal waters light chop.

Wednesday Through Thursday

East winds 5 to 10 knots. Seas 2 to 3 feet. Wave Detail: East 3 feet at 8 seconds and northeast 2 feet at 4 seconds. Intracoastal waters light chop.

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Interactive Mapbox map highlighting marine forecast zone AMZ452.