Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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719 FZUS52 KCHS 281715 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 1215 PM EST Fri Nov 28 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 AMZ300-290600- 1215 PM EST Fri Nov 28 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will prevail through the weekend. A storm system should bring some impacts to our area late Monday into Tuesday. High pressure returns for the middle to end of next week. $$ AMZ330-290600- Charleston Harbor- 1215 PM EST Fri Nov 28 2025 .THIS AFTERNOON...NW winds 5 to 10 kt. .TONIGHT...N winds 5 to 10 kt. .SAT...NE winds 10 to 15 kt. .SAT NIGHT...NE winds 5 to 10 kt. .SUN...NE winds 5 kt, becoming S in the afternoon. .SUN NIGHT...E winds 5 kt, becoming N after midnight. A slight chance of showers after midnight. .MON...NE winds 10 to 15 kt. .MON NIGHT...E winds 10 to 15 kt. Showers likely with a chance of tstms. .TUE...SW winds 10 to 15 kt. Showers with a chance of tstms. .TUE NIGHT...NW winds 10 kt. Showers. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 62 degrees. $$ AMZ350-290600- Waters from South Santee River to Edisto Beach SC out 20 NM- 1215 PM EST Fri Nov 28 2025 .THIS AFTERNOON...N winds 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds. .TONIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds. .SAT...NE winds 15 to 20 kt. Seas 2 to 3 ft, building to 3 to 4 ft in the afternoon. Wave Detail: NE 3 ft at 5 seconds and SE 1 foot at 8 seconds. .SAT NIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after midnight. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and SE 1 foot at 8 seconds. .SUN...E winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 5 seconds and SE 2 ft at 8 seconds. .SUN NIGHT...NW winds 5 kt, becoming N 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and NE 1 foot at 5 seconds. A slight chance of showers after midnight. .MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of showers. .MON NIGHT...E winds 15 to 20 kt. Seas 4 to 5 ft. Showers likely with a chance of tstms. .TUE...SW winds 15 to 20 kt. Seas 4 to 6 ft. Showers with a chance of tstms. .TUE NIGHT...NW winds 15 to 20 kt. Seas 4 to 6 ft. Showers. Winds and seas higher in and near tstms. $$ AMZ352-290600- Waters from Edisto Beach SC to Savannah GA out 20 NM- 1215 PM EST Fri Nov 28 2025 .THIS AFTERNOON...N winds 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 6 seconds and NW 1 foot at 3 seconds. .TONIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and NW 1 foot at 3 seconds. .SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 5 seconds and SE 1 foot at 8 seconds. .SAT NIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 5 seconds. .SUN...NE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 6 seconds. .SUN NIGHT...NE winds 5 kt, becoming N 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds. A slight chance of showers after midnight. .MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of showers. .MON NIGHT...E winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers and tstms. .TUE...SW winds 15 kt. Seas 4 to 6 ft. Showers. .TUE NIGHT...NW winds 15 kt. Seas 4 to 6 ft. Showers. Winds and seas higher in and near tstms. $$ AMZ354-290600- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 1215 PM EST Fri Nov 28 2025 .THIS AFTERNOON...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds and E 1 foot at 8 seconds. .TONIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 5 seconds and SE 1 foot at 8 seconds. .SAT NIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 5 seconds. .SUN...NE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 7 seconds. .SUN NIGHT...NE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 7 seconds. A slight chance of showers after midnight. .MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of showers. .MON NIGHT...E winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers with a slight chance of tstms. .TUE...SW winds 15 kt. Seas 4 to 5 ft. Showers likely with a slight chance of tstms. .TUE NIGHT...NW winds 15 kt. Seas 4 to 5 ft. A slight chance of showers. Winds and seas higher in and near tstms. $$ AMZ374-290600- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 1215 PM EST Fri Nov 28 2025 .THIS AFTERNOON...N winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 7 seconds. .TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. .SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 5 seconds and SE 1 foot at 8 seconds. .SAT NIGHT...E winds 15 to 20 kt, becoming SE 10 to 15 kt after midnight. Seas 4 to 5 ft. Wave Detail: E 4 ft at 6 seconds. A slight chance of showers and tstms. .SUN...SE winds 5 to 10 kt, becoming NE in the afternoon. Seas 3 to 4 ft. Wave Detail: E 4 ft at 7 seconds. A slight chance of showers. .SUN NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 7 seconds. A slight chance of showers. .MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of showers. .MON NIGHT...E winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers and tstms. .TUE...SW winds 15 to 20 kt. Seas 5 to 7 ft. Showers with a slight chance of tstms. .TUE NIGHT...NW winds 15 to 20 kt. Seas 5 to 7 ft. Showers. Winds and seas higher in and near tstms. $$