| 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: 917 PM EDT Tue Oct 20 2026 |  |
Rest Of Tonight: Northeast winds 15 to 20 knots. Seas 6 to 8 feet, occasionally to 10 feet. Wave detail: northeast 8 feet at 12 seconds. Intracoastal waters choppy. Wednesday: Northeast winds 15 to 20 knots. Seas 6 to 7 feet, occasionally to 9 feet. Wave detail: northeast 7 feet at 12 seconds and northeast 2 feet at 5 seconds. Intracoastal waters choppy. Wednesday Night: North winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave detail: northeast 7 feet at 11 seconds. Intracoastal waters choppy. Thursday: North winds 10 to 15 knots. Seas 5 to 6 feet, occasionally to 8 feet. Wave detail: northeast 6 feet at 12 seconds. Intracoastal waters a moderate chop. Thursday Night: Northeast winds 15 to 20 knots. Seas 5 to 7 feet, occasionally to 9 feet. Wave detail: northeast 6 feet at 13 seconds and northeast 5 feet at 6 seconds. Intracoastal waters choppy. Friday: Northeast winds 15 to 20 knots, increasing to 25 to 30 knots in the afternoon. Seas 6 to 8 feet, occasionally to 10 feet. Wave detail: northeast 8 feet at 6 seconds and northeast 5 feet at 12 seconds. Intracoastal waters very rough. A slight chance of showers in the afternoon. Friday Night: Northeast winds 25 to 30 knots. Seas 8 to 10 feet, occasionally to 13 feet, building to 9 to 12 feet, occasionally to 15 feet after midnight. Intracoastal waters very rough. A chance of showers in the evening, then showers likely after midnight. Saturday: Northeast winds 25 to 30 knots. Seas 10 to 13 feet, occasionally to 17 feet, building to 12 to 14 feet, occasionally to 18 feet. Intracoastal waters very rough. Showers through the day. A slight chance of thunderstorms in the afternoon, then a chance of showers in the evening. A slight chance of showers after midnight. Sunday: Northeast winds around 30 knots. Seas 12 to 14 feet, occasionally to 18 feet. Intracoastal waters very rough. A chance of showers in the morning, then showers likely in the afternoon. A chance of showers in the evening, then a slight chance of showers 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) | |
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