Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
877 FZUS52 KCHS 191730 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 1229 PM EST Wed Nov 19 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 AMZ300-200600- 1229 PM EST Wed Nov 19 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... Dry high pressure is expected to prevail across the area through the rest of the week. A cold front is expected to move through this weekend, followed by more high pressure early next week. $$ AMZ330-200600- Charleston Harbor- 1229 PM EST Wed Nov 19 2025 .THIS AFTERNOON...SW winds 5 to 10 kt. .TONIGHT...SW winds 5 kt, becoming NW after midnight. .THU...NE winds 5 kt. .THU NIGHT...NE winds 5 kt. .FRI...SW winds 5 to 10 kt. .FRI NIGHT...SW winds 5 kt, increasing to 10 kt after midnight. .SAT...SW winds 5 to 10 kt. .SAT NIGHT...W winds 5 to 10 kt. .SUN...NE winds 5 to 10 kt. .SUN NIGHT...NE winds 5 to 10 kt. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 62 degrees. $$ AMZ350-200600- Waters from South Santee River to Edisto Beach SC out 20 NM- 1229 PM EST Wed Nov 19 2025 .THIS AFTERNOON...SW winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at 4 seconds and E 1 foot at 7 seconds. .TONIGHT...SW winds 5 to 10 kt, becoming NW after midnight. Seas 2 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 foot at 8 seconds. .THU...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1 foot at 4 seconds and E 1 foot at 6 seconds. .THU NIGHT...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 5 seconds and S 1 foot at 4 seconds. .FRI...W winds 5 kt, becoming SW in the afternoon. Seas 2 ft. Wave Detail: E 2 ft at 5 seconds. .FRI NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 1 foot at 5 seconds. .SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. .SUN...NE winds 10 kt. Seas 2 ft. .SUN NIGHT...NE winds 10 kt. Seas 2 ft. $$ AMZ352-200600- Waters from Edisto Beach SC to Savannah GA out 20 NM- 1229 PM EST Wed Nov 19 2025 .THIS AFTERNOON...SW winds 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 5 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 5 seconds. .THU...NW winds 5 kt, becoming NE in the afternoon. Seas 1 foot or less. Wave Detail: SE 1 foot at 5 seconds. .THU NIGHT...E winds 5 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 5 seconds. .FRI...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 7 seconds. .FRI NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 6 seconds. .SAT...SW winds 10 kt. Seas 2 ft. .SAT NIGHT...W winds 10 kt. Seas 2 ft. .SUN...NE winds 10 kt. Seas 2 ft. .SUN NIGHT...NE winds 10 kt. Seas 2 ft. $$ AMZ354-200600- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 1229 PM EST Wed Nov 19 2025 .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 5 seconds. .TONIGHT...SW winds 5 to 10 kt, becoming W after midnight. Seas 2 ft. Wave Detail: SE 2 ft at 5 seconds. .THU...NW winds 5 kt, becoming NE in the afternoon. Seas 1 to 2 ft. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 6 seconds, becoming E 1 foot at 6 seconds. .THU NIGHT...SE winds 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot at 6 seconds. .FRI...SW winds 5 to 10 kt. Seas 1 foot or less. Wave Detail: S 1 foot at 2 seconds and E 1 foot at 7 seconds. .FRI NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1 foot at 3 seconds and E 1 foot at 6 seconds. .SAT...SW winds 10 kt. Seas 2 ft. .SAT NIGHT...SW winds 10 kt. Seas 2 ft. .SUN...N winds 10 kt. Seas 2 ft. .SUN NIGHT...NE winds 10 kt. Seas 2 ft. $$ AMZ374-200600- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 1229 PM EST Wed Nov 19 2025 .THIS AFTERNOON...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 7 seconds. .TONIGHT...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and SW 1 foot at 4 seconds. .THU...NW winds 5 to 10 kt, becoming N in the afternoon. Seas 2 ft. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 7 seconds. .THU NIGHT...NE winds 5 kt. Seas 2 ft in the evening, then 1 foot or less. Wave Detail: SW 1 foot at 3 seconds and E 1 foot at 7 seconds, becoming E 1 foot at 7 seconds and E 1 foot at 13 seconds. .FRI...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 6 seconds and E 1 foot at 13 seconds. .FRI NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and NE 2 ft at 6 seconds. .SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. .SUN...N winds 10 kt. Seas 2 ft. .SUN NIGHT...NE winds 10 kt. Seas 2 ft. $$