Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
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051 FZUS52 KCHS 261750 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 1250 PM EST Wed Nov 26 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 AMZ300-270600- 1250 PM EST Wed Nov 26 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A strong cold front will sweep through late today, with high pressure building into the region Thursday and into the weekend. A low pressure system could impact the area early next week. $$ AMZ330-270600- Charleston Harbor- 1250 PM EST Wed Nov 26 2025 .THIS AFTERNOON...SW winds 10 kt. .TONIGHT...NW winds 5 to 10 kt. .THU...NW winds 5 to 10 kt. .THU NIGHT...NW winds 5 to 10 kt. .FRI...NW winds 10 kt. .FRI NIGHT...N winds 5 to 10 kt. .SAT...NE winds 10 kt. .SAT NIGHT...NE winds 10 kt. .SUN...SE winds 5 to 10 kt. .SUN NIGHT...SE winds 5 kt. A chance of showers. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 64 degrees. $$ AMZ350-270600- Waters from South Santee River to Edisto Beach SC out 20 NM- 1250 PM EST Wed Nov 26 2025 .THIS AFTERNOON...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and SE 3 ft at 7 seconds. .TONIGHT...W winds 10 to 15 kt, becoming NW after midnight. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and E 2 ft at 8 seconds. .THU...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and SE 1 foot at 8 seconds. .THU NIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 2 ft at 7 seconds. .FRI...N winds 15 to 20 kt, becoming NW 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 4 seconds and SE 1 foot at 7 seconds. .FRI NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and SE 1 foot at 7 seconds. .SAT...NE winds 15 kt. Seas 3 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft. .SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. $$ AMZ352-270600- Waters from Edisto Beach SC to Savannah GA out 20 NM- 1250 PM EST Wed Nov 26 2025 .THIS AFTERNOON...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at 6 seconds. .TONIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 3 seconds and E 2 ft at 7 seconds. .THU...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E 1 foot at 8 seconds. .THU NIGHT...NW winds 10 to 15 kt with gusts to 20 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E 1 foot at 8 seconds. .FRI...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and SE 1 foot at 7 seconds. .FRI NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and SE 1 foot at 7 seconds. .SAT...NE winds 15 kt. Seas 3 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft. .SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. .SUN NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. $$ AMZ354-270600- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 1250 PM EST Wed Nov 26 2025 .THIS AFTERNOON...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds. .TONIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E 2 ft at 7 seconds. .THU...N winds 15 to 20 kt, becoming NW 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E 1 foot at 8 seconds. .THU NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: N 3 ft at 4 seconds and E 1 foot at 8 seconds, becoming NW 3 ft at 4 seconds and E 1 foot at 8 seconds. .FRI...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the afternoon. Wave Detail: N 3 ft at 4 seconds and E 1 foot at 7 seconds. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E 1 foot at 7 seconds. .SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 15 to 20 kt. Seas 3 to 4 ft. .SUN...SE winds 10 kt. Seas 3 ft. .SUN NIGHT...SE winds 10 kt. Seas 2 to 3 ft. A chance of showers. $$ AMZ374-270600- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 1250 PM EST Wed Nov 26 2025 .THIS AFTERNOON...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 7 seconds. .TONIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: W 2 ft at 4 seconds and E 2 ft at 7 seconds, becoming NW 4 ft at 4 seconds and E 2 ft at 8 seconds. .THU...NW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and E 2 ft at 8 seconds. .THU NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft, building to 4 to 5 ft after midnight. Wave Detail: NW 4 ft at 4 seconds and E 2 ft at 8 seconds, becoming NW 4 ft at 5 seconds and E 2 ft at 8 seconds. .FRI...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: N 4 ft at 5 seconds and E 2 ft at 8 seconds, becoming N 4 ft at 5 seconds and E 1 foot at 8 seconds. .FRI NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: N 4 ft at 5 seconds and SE 1 foot at 8 seconds. .SAT...NE winds 15 kt. Seas 3 to 4 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers. .SUN NIGHT...SE winds 10 kt. Seas 3 to 4 ft. A chance of showers. $$