Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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655 FZUS52 KCHS 012139 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 539 PM EDT Sat Nov 1 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 AMZ300-021000- 539 PM EDT Sat Nov 1 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... Cool and dry high pressure will prevail through the weekend. A low pressure system could impact the area early next week. $$ AMZ330-021000- Charleston Harbor- 539 PM EDT Sat Nov 1 2025 .TONIGHT...NE winds 5 to 10 kt. .SUN...NE winds 5 to 10 kt. A chance of showers in the afternoon. .SUN NIGHT...N winds 10 kt. A chance of showers. .MON...N winds 10 to 15 kt. A chance of showers. .MON NIGHT...N winds 10 to 15 kt with gusts to 20 kt. A chance of showers, mainly in the evening. .TUE...N winds 10 to 15 kt with gusts to 20 kt. A slight chance of showers in the morning. .TUE NIGHT...N winds 5 to 10 kt. .WED...NE winds 5 to 10 kt. .WED NIGHT...SW winds 5 kt. .THU...N winds 5 to 10 kt. .THU NIGHT...E winds 5 kt. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 65 degrees. $$ AMZ350-021000- Waters from South Santee River to Edisto Beach SC out 20 NM- 539 PM EDT Sat Nov 1 2025 .TONIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt late. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 9 seconds. .SUN...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 4 seconds and SE 2 ft at 8 seconds. A slight chance of showers in the afternoon. .SUN NIGHT...N winds 10 to 15 kt. Seas 3 ft. Wave Detail: NE 3 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers with a slight chance of tstms in the evening, then showers likely after midnight. .MON...N winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 ft. Wave Detail: N 3 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers. .MON NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave Detail: N 3 ft at 4 seconds and SE 1 foot at 10 seconds, becoming NE 4 ft at 6 seconds and N 2 ft at 3 seconds. A chance of showers, mainly in the evening. .TUE...N winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 7 seconds. A slight chance of showers. .TUE NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight. .WED...NE winds 10 to 15 kt. Seas 4 to 5 ft. .WED NIGHT...W winds 5 to 10 kt. Seas 3 to 4 ft. .THU...N winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. $$ AMZ352-021000- Waters from Edisto Beach SC to Savannah GA out 20 NM- 539 PM EDT Sat Nov 1 2025 .TONIGHT...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 10 seconds and NE 1 foot at 3 seconds. .SUN...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 9 seconds. .SUN NIGHT...N winds 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers. .MON...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers. A slight chance of tstms in the afternoon. .MON NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft at 5 seconds and SE 1 foot at 9 seconds. A chance of showers, mainly in the evening. .TUE...N winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 6 seconds. A slight chance of showers in the morning. .TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. .THU...N winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. $$ AMZ354-021000- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 539 PM EDT Sat Nov 1 2025 .TONIGHT...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 10 seconds and NE 1 foot at 2 seconds. .SUN...NE winds 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and E 2 ft at 9 seconds. .SUN NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers. .MON...N winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 8 seconds. A chance of showers. A slight chance of tstms in the afternoon. .MON NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft at 5 seconds and SE 1 foot at 10 seconds. A chance of showers, mainly in the evening. .TUE...N winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 5 seconds and E 3 ft at 9 seconds. A slight chance of showers in the morning. .TUE NIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 4 ft. .WED...NE winds 10 to 15 kt. Seas 3 to 4 ft. .WED NIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft. .THU...N winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. $$ AMZ374-021000- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 539 PM EDT Sat Nov 1 2025 .TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 10 seconds and N 1 foot at 3 seconds. .SUN...N winds 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds and E 2 ft at 9 seconds. .SUN NIGHT...N winds 10 to 15 kt. Seas 3 ft. Wave Detail: NE 2 ft at 4 seconds and SE 2 ft at 9 seconds. A chance of showers. .MON...N winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: N 3 ft at 4 seconds and SE 2 ft at 9 seconds. A slight chance of tstms. A chance of showers. .MON NIGHT...N winds 20 kt with gusts to 25 kt. Seas 4 to 5 ft, building to 4 to 6 ft after midnight. Wave Detail: N 4 ft at 5 seconds and SE 2 ft at 10 seconds, becoming N 5 ft at 5 seconds and SE 1 foot at 10 seconds. A chance of showers with a slight chance of tstms in the evening, then a slight chance of showers after midnight. .TUE...N winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft, building to 5 to 7 ft in the afternoon. Wave Detail: NE 6 ft at 6 seconds and SE 1 foot at 9 seconds, becoming NE 6 ft at 6 seconds and E 6 ft at 9 seconds. A slight chance of showers. .TUE NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 7 ft. .WED...NE winds 10 to 15 kt. Seas 4 to 6 ft. .WED NIGHT...N winds 5 to 10 kt. Seas 4 to 5 ft. .THU...N winds 5 to 10 kt. Seas 3 to 4 ft. .THU NIGHT...E winds 5 to 10 kt. Seas 3 ft. Winds and seas higher in and near tstms. $$