


Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
687 FZUS52 KCHS 141106 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 706 AM EDT Mon Jul 14 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 AMZ300-150015- 706 AM EDT Mon Jul 14 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... Atlantic high pressure will prevail into the upcoming weekend. $$ AMZ330-150015- Charleston Harbor- 706 AM EDT Mon Jul 14 2025 .TODAY...E winds 5 kt, increasing to 10 to 15 kt this afternoon. A slight chance of showers and tstms this morning, then a chance of showers and tstms this afternoon. .TONIGHT...E winds 5 to 10 kt. A slight chance of showers and tstms in the evening. .TUE...E winds 5 to 10 kt, becoming SE 10 to 15 kt in the afternoon. A chance of showers and tstms. .TUE NIGHT...S winds 10 to 15 kt. A chance of showers and tstms. .WED...S winds 10 to 15 kt. Showers likely with a chance of tstms. .WED NIGHT...S winds 10 to 15 kt. A chance of showers and tstms, mainly in the evening. .THU...S winds 10 to 15 kt. A chance of showers and tstms. .THU NIGHT...S winds 10 to 15 kt. .FRI...SW winds 10 to 15 kt. A chance of showers and tstms. .FRI NIGHT...SW winds 10 to 15 kt. A slight chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 85 degrees. $$ AMZ350-150015- Waters from South Santee River to Edisto Beach SC out 20 NM- 706 AM EDT Mon Jul 14 2025 .TODAY...E winds 5 kt, increasing to 5 to 10 kt this afternoon. Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds. A slight chance of showers and tstms. .TONIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds. .TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers and tstms. .TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers and tstms. .WED...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 6 seconds. Showers likely with a chance of tstms. .WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 6 seconds. A slight chance of tstms. A slight chance of showers in the evening, then a chance of showers after midnight. .THU...S winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. .THU NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms. .FRI...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. .FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ352-150015- Waters from Edisto Beach SC to Savannah GA out 20 NM- 706 AM EDT Mon Jul 14 2025 .TODAY...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds. A slight chance of showers and tstms. .TONIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds. A slight chance of showers and tstms in the evening. .TUE...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 6 seconds. A chance of showers and tstms. .TUE NIGHT...SE winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers. A chance of tstms, mainly in the evening. .WED...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers and tstms. .WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 6 seconds. A slight chance of showers and tstms. .THU...S winds 10 kt. Seas 3 ft. A chance of showers and tstms. .THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .FRI...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers with a slight chance of tstms. .FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-150015- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 706 AM EDT Mon Jul 14 2025 .TODAY...NE winds 5 to 10 kt, becoming E late. Seas 2 ft. Wave Detail: SE 2 ft at 8 seconds. A slight chance of showers and tstms late this morning and early afternoon. A chance of showers and tstms late. .TONIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 6 seconds. A chance of showers and tstms in the evening. .TUE...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 6 seconds. A chance of showers and tstms. .TUE NIGHT...SE winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers. A chance of tstms, mainly in the evening. .WED...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers. A slight chance of tstms in the morning, then a chance of tstms in the afternoon. .WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers and tstms, mainly in the evening. .THU...S winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. .THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .FRI...S winds 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. .FRI NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ374-150015- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 706 AM EDT Mon Jul 14 2025 .TODAY...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 8 seconds. A slight chance of tstms. A slight chance of showers. .TONIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 6 seconds. A slight chance of showers and tstms. .TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 6 seconds. A chance of showers and tstms. .TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: SE 3 ft at 6 seconds, becoming SE 4 ft at 6 seconds. A chance of showers. A chance of tstms, mainly in the evening. .WED...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds. A chance of tstms. A chance of showers, mainly in the morning. .WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 6 seconds. A slight chance of tstms. A slight chance of showers in the evening, then a chance of showers after midnight. .THU...S winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. .THU NIGHT...S winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms. .FRI...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers with a slight chance of tstms. .FRI NIGHT...SW winds 10 kt. Seas 3 ft. A slight chance of showers and tstms. Winds and seas higher in and near tstms. $$