| NWS Forecast for: Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM (AMZ452) Issued by: National Weather Service Jacksonville, FL Last Update: 922 PM EDT Sat Sep 12 2026 | |
| Rest Of Tonight: Southwest winds 10 to 15 knots, becoming west 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters becoming mostly smooth. Sunday: West northwest winds around 10 knots, becoming east northeast 10 to 15 knots in the afternoon. Seas around 2 feet. Wave detail: south 2 feet at 4 seconds and east 2 feet at 8 seconds. Intracoastal waters a light chop. A chance of showers and thunderstorms in the afternoon. A few strong storms will be possible late in the afternoon, with strong wind gusts, frequent lightning strikes, and torrential downpours. Sunday Night: South winds 10 to 15 knots, becoming west 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 9 seconds and southeast 2 feet at 4 seconds. Intracoastal waters becoming mostly smooth. A chance of showers and thunderstorms in the evening. Monday: Northwest winds 5 to 10 knots, becoming east northeast around 10 knots in the afternoon. Seas around 2 feet. Wave detail: southeast 2 feet at 9 seconds. Intracoastal waters becoming a light chop. A slight chance of showers and thunderstorms late in the afternoon. Monday Night: Southeast winds around 5 knots, becoming northeast around 10 knots after midnight. Seas around 2 feet. Wave detail: east 2 feet at 9 seconds. Intracoastal waters mostly smooth. Tuesday: Northeast winds 15 to 20 knots, increasing to 20 to 25 knots in the afternoon. Seas 2 to 3 feet, building to 4 to 6 feet, occasionally to 8 feet in the afternoon. Wave detail: northeast 3 feet at 7 seconds and east 2 feet at 9 seconds, becoming northeast 6 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters becoming rough. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Tuesday Night: Northeast winds 20 to 25 knots. Seas 6 to 8 feet, occasionally to 10 feet. Intracoastal waters rough. A chance of showers with a slight chance of thunderstorms. Wednesday: Northeast winds 20 to 25 knots. Seas 6 to 9 feet, occasionally to 11 feet. Intracoastal waters rough. A chance of showers. And thunderstorms after midnight. Wednesday Night And Thursday: Northeast winds around 20 knots, becoming east 15 to 20 knots during the afternoon. Seas 5 to 7 feet, occasionally to 9 feet. Intracoastal waters becoming choppy. Showers likely with a chance of thunderstorms. winds and waves higher in and near thunderstorms. | |
| Zone Forecast: Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM (AMZ452) | |
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