Coastal Waters Forecast for Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm, including Grays Reef National Marine Sanctuary (AMZ364) (Text-Only)
NWS Forecast for: Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm, including Grays Reef National Marine Sanctuary (AMZ364)
Issued by: National Weather Service Charleston, SC
Last Update: 724 AM EDT Sun Sep 6 2026


Today: W winds 5 to 10 kt, becoming S this afternoon. Seas 2 ft. Wave detail: SE 2 ft at 8 seconds and SW 1 foot at 4 seconds. A slight chance of showers and tstms early this afternoon. A chance of showers and tstms late.

Tonight: S winds 5 to 10 kt, becoming NE after midnight. Seas 2 ft. Wave detail: SE 2 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of tstms. A chance of showers in the evening, then showers likely after midnight.

Mon: NE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts to 20 kt in the afternoon. Seas 2 to 3 ft. Wave detail: E 2 ft at 5 seconds and SE 1 foot at 9 seconds. A chance of tstms. A chance of showers in the morning, then showers likely in the afternoon.

Mon Night: E winds 15 to 20 kt. Seas 3 to 4 ft. Wave detail: E 4 ft at 9 seconds and E 2 ft at 4 seconds. Showers with a chance of tstms.

Tue: E winds 15 to 20 kt. Seas 3 to 4 ft. Wave detail: E 4 ft at 5 seconds. A chance of tstms. Showers.

Tue Night: E winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 4 ft. Wave detail: E 4 ft at 6 seconds. Showers likely with a chance of tstms.

Wed: E winds 5 to 10 kt. Seas 3 to 4 ft. A chance of showers and tstms.

Wed Night: SE winds 5 to 10 kt. Seas 3 ft. A slight chance of showers and tstms.

Thu: SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.

Thu Night: SW winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.

winds and seas higher in and near tstms.







Zone Forecast: Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm, including Grays Reef National Marine Sanctuary (AMZ364)

Visit your local NWS office at: https://www.weather.gov/chs