| 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: 739 PM EDT Sun Aug 17 2025 | |
| Rest Of Tonight: East winds 5 to 10 knots. Seas 2 to 3 feet. Wave detail: northeast 2 feet at 4 seconds and east 2 feet at 9 seconds. Intracoastal waters light chop. A chance of showers and thunderstorms. Monday: Northeast winds 5 to 10 knots, increasing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave detail: northeast 2 feet at 5 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. A chance of showers and thunderstorms. Monday Night: Northeast winds 5 to 10 knots. Seas 4 to 6 feet, occasionally to 8 feet. Wave detail: east 5 feet at 15 seconds and east 4 feet at 12 seconds. Intracoastal waters light chop. A slight chance of showers in the evening. Tuesday: Northeast winds 10 to 15 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave detail: east 8 feet at 15 seconds and east 3 feet at 12 seconds. Intracoastal waters a moderate chop. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Tuesday Night: Northeast winds 10 to 15 knots. Seas 7 to 9 feet, occasionally to 11 feet. Wave detail: east 9 feet at 15 seconds and northeast 3 feet at 7 seconds. Intracoastal waters a moderate chop. A chance of showers with a slight chance of thunderstorms. Wednesday: North winds 10 to 15 knots. Seas 8 to 10 feet, occasionally to 13 feet. Wave detail: east 9 feet at 15 seconds and northeast 3 feet at 7 seconds. Intracoastal waters a moderate chop. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Wednesday Night: North winds 5 to 10 knots, becoming west after midnight. Seas 6 to 9 feet, occasionally to 11 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms. Thursday: Northeast winds 5 to 10 knots, becoming southwest. Seas 5 to 7 feet, occasionally to 9 feet. Intracoastal waters light chop. A slight chance of showers and thunderstorms in the morning, then a chance of thunderstorms through the night. A chance of showers. A slight chance of thunderstorms after midnight. Friday: South winds 5 to 10 knots. Seas 4 to 6 feet, occasionally to 8 feet. Intracoastal waters light chop. A chance of showers and thunderstorms in the morning, then thunderstorms likely in the afternoon. Showers likely through the night. A chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. winds and waves higher in and near thunderstorms. | |
| Zone Forecast: Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM (AMZ452) | |
Visit your local NWS office at: https://www.weather.gov/jax |