


Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
615 FZUS52 KCHS 100935 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 535 AM EDT Sun Aug 10 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 AMZ300-102215- 535 AM EDT Sun Aug 10 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A stationary front will linger south of the area through early this week, while high pressure remains centered well to our north. $$ AMZ330-102215- Charleston Harbor- 535 AM EDT Sun Aug 10 2025 .TODAY...E winds 10 to 15 kt. Showers, tstms. Rain heavy at times with vsby 1 NM or less. .TONIGHT...SE winds 5 to 10 kt. Tstms likely. Showers. Rain heavy at times with vsby 1 NM or less. .MON...SE winds 5 to 10 kt. Tstms likely. Showers. .MON NIGHT...SE winds 5 to 10 kt. Showers likely with a chance of tstms. .TUE...S winds 5 to 10 kt. Showers likely with a chance of tstms. .TUE NIGHT...SW winds 5 kt. A chance of showers and tstms. .WED...SW winds 5 to 10 kt. A chance of showers and tstms. .WED NIGHT...SW winds 5 to 10 kt. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. A chance of showers and tstms. .THU NIGHT...SW winds 5 to 10 kt. A chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 82 degrees. $$ AMZ350-102215- Waters from South Santee River to Edisto Beach SC out 20 NM- 535 AM EDT Sun Aug 10 2025 .TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 8 seconds and SE 2 ft at 5 seconds. Showers with tstms likely. Rain heavy at times with vsby 1 NM or less. .TONIGHT...SE winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at 8 seconds and SE 2 ft at 5 seconds. Tstms likely. Showers. Rain heavy at times with vsby 1 NM or less. .MON...SE winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 7 seconds. Tstms likely. Showers. .MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 foot at 10 seconds. Showers likely with a chance of tstms. .TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and SE 1 foot at 9 seconds. Showers likely with a chance of tstms. .TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 6 seconds and SE 1 foot at 9 seconds. A chance of showers and tstms. .WED...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ352-102215- Waters from Edisto Beach SC to Savannah GA out 20 NM- 535 AM EDT Sun Aug 10 2025 .TODAY...SE winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at 8 seconds and SE 2 ft at 5 seconds. Showers and tstms. Rain heavy at times with vsby 1 NM or less. .TONIGHT...SE winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at 8 seconds. Showers with tstms likely. Rain heavy at times with vsby 1 NM or less. .MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. Showers with tstms likely in the morning, then showers with a chance of tstms in the afternoon. .MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and E 1 foot at 10 seconds. A chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...SE winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 foot at 10 seconds. Showers likely with a chance of tstms. .TUE NIGHT...S winds 5 kt. Seas 2 ft. Wave Detail: E 2 ft at 6 seconds and E 1 foot at 9 seconds. A chance of showers and tstms. .WED...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-102215- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 535 AM EDT Sun Aug 10 2025 .TODAY...E winds 10 kt, becoming SE. Seas 3 ft. Wave Detail: E 3 ft at 6 seconds. Showers with tstms likely. Rain heavy at times with vsby 1 NM or less. .TONIGHT...SE winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at 8 seconds. Showers and tstms likely in the evening, then showers with a chance of tstms after midnight. Rain heavy at times with vsby 1 NM or less. .MON...SE winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at 8 seconds. A chance of tstms. Showers. .MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and E 1 foot at 10 seconds. A chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 foot at 10 seconds. Showers likely with a chance of tstms. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 foot at 9 seconds. A chance of showers and tstms. .WED...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ374-102215- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 535 AM EDT Sun Aug 10 2025 .TODAY...E winds 10 kt, becoming SE. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 5 seconds and NE 3 ft at 8 seconds. Showers and tstms this morning, then showers with a chance of tstms this afternoon. Rain heavy at times with vsby 1 NM or less. .TONIGHT...SE winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 8 seconds and SE 2 ft at 5 seconds. Tstms likely. Showers. Rain heavy at times with vsby 1 NM or less. .MON...SE winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 8 seconds and SE 2 ft at 5 seconds. Showers with tstms likely in the morning, then showers with a chance of tstms in the afternoon. .MON NIGHT...SE winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 7 seconds. A chance of tstms. A chance of showers in the evening, then showers likely after midnight. .TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds. Showers likely with a chance of tstms. .TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds. A slight chance of showers and tstms in the evening, then a chance of showers and tstms after midnight. .WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. .THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. .THU NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$