Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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439 FZUS52 KCHS 071115 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 615 AM EST Fri Nov 7 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 AMZ300-080000- 615 AM EST Fri Nov 7 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will extend across the region through the weekend. A strong cold front will cross the region Sunday night bringing much colder conditions to the area next week. $$ AMZ330-080000- Charleston Harbor- 615 AM EST Fri Nov 7 2025 .TODAY...E winds 5 kt, becoming S this afternoon. .TONIGHT...SW winds 5 kt. .SAT...SW winds 5 to 10 kt. .SAT NIGHT...SW winds 5 kt. A slight chance of showers after midnight. .SUN...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. .SUN NIGHT...SW winds 10 kt, becoming W with gusts to 20 kt after midnight. A slight chance of showers and tstms. .MON...NW winds 15 to 20 kt. Waves 1 to 2 ft. .MON NIGHT...NW winds 15 to 20 kt. Waves 1 to 2 ft. .TUE...NW winds 10 to 15 kt. .TUE NIGHT...W winds 5 to 10 kt. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 64 degrees. $$ AMZ350-080000- Waters from South Santee River to Edisto Beach SC out 20 NM- 615 AM EST Fri Nov 7 2025 .TODAY...E winds 5 to 10 kt, becoming SW this afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and SE 2 ft at 9 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 6 seconds. .SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and SE 2 ft at 11 seconds. A slight chance of showers and tstms after midnight. .SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 1 foot at 11 seconds. .SUN NIGHT...SW winds 15 kt, becoming W after midnight. Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds and W 2 ft at 3 seconds. A slight chance of showers and tstms. .MON...NW winds 20 to 25 kt. Seas 4 to 5 ft. .MON NIGHT...NW winds 25 to 30 kt. Seas 4 to 6 ft. .TUE...NW winds 15 to 20 kt. Seas 3 to 4 ft. .TUE NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. $$ AMZ352-080000- Waters from Edisto Beach SC to Savannah GA out 20 NM- 615 AM EST Fri Nov 7 2025 .TODAY...Variable winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and SE 2 ft at 8 seconds. .TONIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and SW 1 foot at 2 seconds. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 6 seconds and SE 2 ft at 9 seconds. .SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 6 seconds. .SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and SE 1 foot at 11 seconds. .SUN NIGHT...SW winds 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: S 3 ft at 4 seconds and SE 1 foot at 7 seconds, becoming NW 3 ft at 4 seconds and S 3 ft at 6 seconds. A slight chance of showers and tstms. .MON...NW winds 20 to 25 kt. Seas 4 to 5 ft. .MON NIGHT...NW winds 20 to 25 kt. Seas 4 to 5 ft. .TUE...NW winds 15 to 20 kt. Seas 3 to 4 ft. .TUE NIGHT...W winds 5 to 10 kt. Seas 2 ft. Winds and seas higher in and near tstms. $$ AMZ354-080000- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 615 AM EST Fri Nov 7 2025 .TODAY...N winds 5 kt, becoming SE late. Seas 2 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 8 seconds. .TONIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 5 seconds and SE 2 ft at 8 seconds. .SAT...SW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds. .SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds. .SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 6 seconds and SE 2 ft at 10 seconds. A slight chance of showers and tstms in the afternoon. .SUN NIGHT...SW winds 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: SW 2 ft at 4 seconds and SE 1 foot at 7 seconds, becoming W 3 ft at 4 seconds and SE 1 foot at 7 seconds. A slight chance of showers and tstms in the evening. .MON...NW winds 20 to 25 kt. Seas 3 to 4 ft. .MON NIGHT...NW winds 20 to 25 kt. Seas 4 to 5 ft. .TUE...NW winds 15 to 20 kt. Seas 3 to 4 ft. .TUE NIGHT...W winds 10 kt. Seas 2 ft. Winds and seas higher in and near tstms. $$ AMZ374-080000- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 615 AM EST Fri Nov 7 2025 .TODAY...N winds 5 kt, becoming S late. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 5 seconds and SE 2 ft at 8 seconds. .TONIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds. .SAT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NE 2 ft at 7 seconds and SE 2 ft at 8 seconds. .SAT NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 7 seconds. .SUN...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 7 seconds. .SUN NIGHT...SW winds 15 to 20 kt, becoming NW after midnight. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 7 seconds, becoming W 4 ft at 5 seconds and SE 2 ft at 7 seconds. A slight chance of showers and tstms in the evening. .MON...NW winds 20 to 25 kt. Seas 4 to 6 ft. .MON NIGHT...NW winds 25 to 30 kt. Seas 6 to 8 ft. .TUE...NW winds 20 to 25 kt. Seas 4 to 6 ft. .TUE NIGHT...W winds 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. $$