Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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094 FZUS52 KCHS 091350 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 850 AM EST Sun Nov 9 2025 South Santee River SC to Savannah GA out 20 NM and Savannah GA to Altamaha Sound GA out 60 NM, including Charleston Harbor and Grays Reef National Marine Sanctuary AMZ300-100215- 850 AM EST Sun Nov 9 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A strong cold front will move through tonight, bringing much colder conditions to the area this week. $$ AMZ330-100215- Charleston Harbor- 850 AM EST Sun Nov 9 2025 .TODAY...SW winds 10 to 15 kt. .TONIGHT...SW winds 10 kt, becoming NW 15 kt with gusts to 20 kt NW after midnight. A chance of showers and tstms, mainly in the evening. .MON...NW winds 10 to 15 kt, becoming W 15 to 20 kt in the afternoon. Waves building to 1 to 2 ft. .MON NIGHT...NW winds 20 kt with gusts to 30 kt. Waves 2 ft. .TUE...W winds 10 to 15 kt. .TUE NIGHT...W winds 5 to 10 kt. .WED...SW winds 10 to 15 kt. .WED NIGHT...W winds 10 to 15 kt. .THU...W winds 5 to 10 kt. .THU NIGHT...NW winds 5 kt. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 65 degrees. $$ AMZ350-100215- Waters from South Santee River to Edisto Beach SC out 20 NM- 850 AM EST Sun Nov 9 2025 .TODAY...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds and SE 2 ft at 10 seconds. .TONIGHT...SW winds 15 to 20 kt, becoming NW 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: W 4 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers and tstms, mainly in the evening. .MON...NW winds 15 to 20 kt, becoming W 20 to 25 kt in the afternoon. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. Wave Detail: NW 4 ft at 5 seconds and SE 1 foot at 7 seconds, becoming W 5 ft at 5 seconds and E 1 foot at 7 seconds. .MON NIGHT...NW winds 25 to 30 kt with gusts to 35 kt. Seas 5 to 7 ft. Wave Detail: W 7 ft at 6 seconds and SE 1 foot at 10 seconds. .TUE...NW winds 20 to 25 kt, becoming W 10 to 15 kt in the afternoon. Seas 4 to 5 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: NW 5 ft at 5 seconds and SE 1 foot at 10 seconds, becoming W 3 ft at 5 seconds and SE 1 foot at 10 seconds. .TUE NIGHT...W winds 10 to 15 kt. Seas 2 ft. Wave Detail: W 2 ft at 4 seconds and SE 1 foot at 10 seconds. .WED...W winds 15 to 20 kt. Seas 3 to 4 ft. .WED NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 5 kt. Seas 2 ft. Winds and seas higher in and near tstms. $$ AMZ352-100215- Waters from Edisto Beach SC to Savannah GA out 20 NM- 850 AM EST Sun Nov 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING... .TODAY...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at 5 seconds and E 2 ft at 8 seconds. .TONIGHT...SW winds 15 to 20 kt, becoming NW 20 to 25 kt after midnight. Seas 3 to 4 ft. Wave Detail: W 4 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers and tstms, mainly in the evening. .MON...NW winds 20 to 25 kt with gusts to 30 kt. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. Wave Detail: NW 4 ft at 4 seconds and SE 1 foot at 7 seconds, becoming W 5 ft at 4 seconds and E 1 foot at 7 seconds. .MON NIGHT...NW winds 25 to 30 kt with gusts to 35 kt. Seas 4 to 6 ft. Wave Detail: NW 6 ft at 5 seconds and SE 1 foot at 10 seconds. .TUE...NW winds 15 to 20 kt with gusts to 25 kt, becoming W 10 to 15 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: NW 4 ft at 5 seconds and SE 1 foot at 10 seconds, becoming W 3 ft at 4 seconds and SE 1 foot at 10 seconds. .TUE NIGHT...W winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft. Wave Detail: W 2 ft at 3 seconds. .WED...W winds 10 to 15 kt. Seas 2 to 3 ft. .WED NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 5 kt. Seas 2 ft. Winds and seas higher in and near tstms. $$ AMZ354-100215- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 850 AM EST Sun Nov 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING... .TODAY...SW winds 10 to 15 kt, becoming S with gusts to 20 kt late. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 7 seconds. A slight chance of showers and tstms late. .TONIGHT...SW winds 15 kt, becoming NW 20 to 25 kt after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: S 3 ft at 4 seconds and SE 1 foot at 8 seconds, becoming NW 4 ft at 4 seconds and SE 1 foot at 8 seconds. A chance of showers and tstms, mainly in the evening. .MON...NW winds 20 to 25 kt with gusts to 30 kt. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. Wave Detail: NW 4 ft at 4 seconds and SE 1 foot at 7 seconds, becoming W 4 ft at 4 seconds and E 1 foot at 7 seconds. .MON NIGHT...NW winds 25 to 30 kt with gusts to 35 kt. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 5 seconds and E 1 foot at 7 seconds. .TUE...NW winds 15 to 20 kt with gusts to 25 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: NW 4 ft at 4 seconds and E 1 foot at 10 seconds, becoming NW 2 ft at 4 seconds and E 1 foot at 10 seconds. .TUE NIGHT...W winds 5 to 10 kt. Seas 2 ft in the evening, then 1 foot or less. Wave Detail: W 2 ft at 3 seconds, becoming W 1 foot at 3 seconds. .WED...W winds 10 to 15 kt. Seas 2 ft. .WED NIGHT...W winds 10 to 15 kt. Seas 2 ft. .THU...W winds 10 to 15 kt. Seas 2 ft. .THU NIGHT...W winds 5 kt. Seas 2 ft. Winds and seas higher in and near tstms. $$ AMZ374-100215- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 850 AM EST Sun Nov 9 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY MORNING... .TODAY...SW winds 10 to 15 kt with gusts to 20 kt, becoming S with gusts to 20 kt late. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds. .TONIGHT...SW winds 15 to 20 kt, becoming NW 20 to 25 kt after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after midnight. Wave Detail: SW 4 ft at 4 seconds and SE 2 ft at 8 seconds, becoming W 5 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers and tstms in the evening, then a slight chance of showers after midnight. .MON...NW winds 20 to 25 kt with gusts to 30 kt. Seas 5 to 6 ft, building to 5 to 7 ft in the afternoon. Wave Detail: NW 6 ft at 5 seconds and SE 1 foot at 7 seconds. .MON NIGHT...NW winds 25 to 30 kt with gusts to 35 kt. Seas 6 to 8 ft, building to 7 to 9 ft after midnight. Wave Detail: NW 8 ft at 6 seconds and E 1 foot at 10 seconds, becoming NW 9 ft at 6 seconds and E 1 foot at 10 seconds. .TUE...NW winds 20 to 25 kt with gusts to 30 kt, diminishing to 10 to 15 kt with gusts to 20 kt in the afternoon. Seas 5 to 7 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: NW 7 ft at 6 seconds and E 1 foot at 10 seconds, becoming NW 4 ft at 5 seconds and SE 1 foot at 10 seconds. .TUE NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and SE 1 foot at 10 seconds. .WED...W winds 10 to 15 kt. Seas 2 to 3 ft. .WED NIGHT...W winds 15 kt. Seas 3 to 4 ft. .THU...W winds 10 to 15 kt. Seas 2 to 3 ft. .THU NIGHT...NW winds 5 to 10 kt. Seas 2 ft. Winds and seas higher in and near tstms. $$