Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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395 FZUS52 KCHS 081855 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 255 PM EDT Sun Mar 8 2026 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 AMZ300-090800- 255 PM EDT Sun Mar 8 2026 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A weak cold front will dissipate north and west of the region tonight. Otherwise, high pressure will prevail. A stronger cold front will pass offshore Thursday. $$ AMZ330-090800- Charleston Harbor- 255 PM EDT Sun Mar 8 2026 .TONIGHT...SW winds 5 to 10 kt. Showers likely with a chance of tstms this evening, then a chance of showers with a slight chance of tstms after midnight. A slight chance of showers late. .MON...SW winds 5 to 10 kt. .MON NIGHT...SW winds 5 to 10 kt. A slight chance of showers after midnight. .TUE...SW winds 5 kt. A chance of showers. .TUE NIGHT...SW winds 5 kt. A chance of showers in the evening. .WED...SW winds 5 kt, becoming S in the afternoon. .WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. .THU...W winds 15 kt. Showers likely. .THU NIGHT...N winds 10 to 15 kt. A slight chance of showers. .FRI...E winds 10 kt. .FRI NIGHT...SW winds 5 to 10 kt. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 60 degrees. $$ AMZ350-090800- Waters from South Santee River to Edisto Beach SC out 20 NM- 255 PM EDT Sun Mar 8 2026 .TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds and SE 3 ft at 9 seconds. Patchy fog early this evening. Showers likely with a chance of tstms this evening, then a chance of showers with a slight chance of tstms after midnight. .MON...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 6 seconds. .MON NIGHT...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. A slight chance of showers after midnight. .TUE...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. A chance of showers. .TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. A slight chance of showers in the evening. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt in the afternoon. Seas 2 to 3 ft, building to 3 to 4 ft in the afternoon. Wave Detail: SE 3 ft at 9 seconds, becoming S 3 ft at 4 seconds and SE 3 ft at 9 seconds. .WED NIGHT...S winds 15 to 20 kt, becoming SW 20 to 25 kt after midnight. Seas 4 to 5 ft, building to 4 to 6 ft after midnight. A slight chance of showers after midnight. .THU...W winds 20 to 25 kt. Seas 5 to 7 ft. Showers likely. .THU NIGHT...N winds 25 to 30 kt. Seas 4 to 6 ft. A chance of showers. .FRI...E winds 15 to 20 kt. Seas 4 to 6 ft. A slight chance of showers. .FRI NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms. $$ AMZ352-090800- Waters from Edisto Beach SC to Savannah GA out 20 NM- 255 PM EDT Sun Mar 8 2026 .TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 10 seconds. Patchy fog early this evening. Showers likely with a chance of tstms this evening, then a chance of showers with a slight chance of tstms after midnight. .MON...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 9 seconds. .MON NIGHT...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. A slight chance of showers. .TUE...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. A chance of showers. .TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. A chance of showers in the evening. .WED...SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. .WED NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. A slight chance of showers after midnight. .THU...W winds 20 to 25 kt. Seas 4 to 5 ft. Showers likely with a slight chance of tstms. .THU NIGHT...N winds 20 to 25 kt. Seas 4 to 5 ft. A chance of showers. .FRI...E winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of showers. .FRI NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$ AMZ354-090800- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 255 PM EDT Sun Mar 8 2026 .TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt late. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 10 seconds. A chance of tstms this evening. A chance of showers. A slight chance of tstms after midnight. .MON...W winds 5 to 10 kt, becoming S in the afternoon. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. .MON NIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. A slight chance of showers. .TUE...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. A slight chance of showers. .TUE NIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. A slight chance of showers in the evening. .WED...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 9 seconds. .WED NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. A slight chance of showers after midnight. .THU...W winds 15 to 20 kt. Seas 4 to 5 ft. Showers likely with a slight chance of tstms. .THU NIGHT...N winds 20 to 25 kt. Seas 4 to 5 ft. A chance of showers. .FRI...NE winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of showers. .FRI NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$ AMZ374-090800- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 255 PM EDT Sun Mar 8 2026 .TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt, becoming 10 kt late. Seas 4 to 5 ft. Wave Detail: SE 4 ft at 10 seconds. Showers likely with a chance of tstms this evening, then a chance of showers with a slight chance of tstms after midnight. .MON...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. .MON NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A slight chance of showers and tstms. .TUE...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. A slight chance of showers. .TUE NIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 3 seconds. A slight chance of showers in the evening. .WED...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 9 seconds. .WED NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, building to 5 to 6 ft after midnight. .THU...W winds 20 to 25 kt. Seas 4 to 6 ft. Showers likely with a slight chance of tstms. .THU NIGHT...N winds 25 to 30 kt. Seas 5 to 7 ft. A chance of showers. .FRI...E winds 15 to 20 kt. Seas 4 to 6 ft. A slight chance of showers. .FRI NIGHT...S winds 10 kt. Seas 4 to 5 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$