


Coastal Waters Forecast
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
856 FZUS52 KCHS 152258 CCA CWFCHS Coastal Waters Forecast...CORRECTED National Weather Service Charleston SC 658 PM EDT Tue Jul 15 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 AMZ300-161115- 658 PM EDT Tue Jul 15 2025 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... Atlantic high pressure will prevail through early next week. $$ AMZ330-161115- Charleston Harbor- 658 PM EDT Tue Jul 15 2025 .TONIGHT...SE winds 10 kt, becoming S. A slight chance of showers and tstms early this evening. .WED...S winds 10 to 15 kt. A chance of showers and tstms. .WED NIGHT...S winds 10 kt. .THU...SW winds 10 to 15 kt. A chance of showers. A slight chance of tstms in the morning, then a chance of tstms in the afternoon. .THU NIGHT...SW winds 10 to 15 kt. A slight chance of showers and tstms in the evening. .FRI...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. A slight chance of showers and tstms. .FRI NIGHT...SW winds 10 to 15 kt. A slight chance of showers and tstms in the evening. .SAT...SW winds 5 to 10 kt. A chance of showers and tstms. .SAT NIGHT...SW winds 5 to 10 kt. A slight chance of showers and tstms. .SUN...SW winds 5 to 10 kt. A chance of showers and tstms. .SUN NIGHT...SW winds 10 kt. A slight chance of showers and tstms. Winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 87 degrees. $$ AMZ350-161115- Waters from South Santee River to Edisto Beach SC out 20 NM- 658 PM EDT Tue Jul 15 2025 .TONIGHT...SE winds 10 to 15 kt with gusts to 20 kt, becoming S. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds. A slight chance of showers and tstms early this evening. A slight chance of showers and tstms after midnight. .WED...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds. A chance of showers and tstms. Vsby 1 to 3 NM. .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 showers and tstms after midnight. .THU...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at 6 seconds. A chance of showers and tstms. .THU NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at 6 seconds. .FRI...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at 7 seconds. A slight chance of showers and tstms. .FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms after midnight. .SAT...SW winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms. .SAT NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms. .SUN...SW winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms. .SUN NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ352-161115- Waters from Edisto Beach SC to Savannah GA out 20 NM- 658 PM EDT Tue Jul 15 2025 .TONIGHT...SE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds, becoming SE 4 ft at 7 seconds. A slight chance of showers and tstms early this evening. A slight chance of showers and tstms after midnight. .WED...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. A chance of showers and tstms. .WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft. Wave Detail: SE 3 ft at 6 seconds. A slight chance of showers and tstms after midnight. .THU...S winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers and tstms. .THU NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 6 seconds. .FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and SW 1 foot at 4 seconds. A slight chance of showers and tstms. .FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$ AMZ354-161115- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 658 PM EDT Tue Jul 15 2025 .TONIGHT...SE winds 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 7 seconds. A slight chance of showers and tstms early this evening. A slight chance of showers and tstms after midnight, then a chance of showers and tstms late. .WED...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds. A chance of showers and tstms, mainly in the morning. .WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 6 seconds. A slight chance of showers and tstms. .THU...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. .THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds. A slight chance of showers and tstms in the evening. .FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. A slight chance of showers and tstms. .FRI NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms in the evening. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .SUN 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. $$ AMZ374-161115- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 658 PM EDT Tue Jul 15 2025 .TONIGHT...SE winds 15 kt with gusts to 20 kt. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 6 seconds. A slight chance of showers and tstms until early morning, then a chance of showers and tstms late. .WED...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 6 seconds. A chance of showers and tstms. Vsby 1 to 3 NM. .WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers with a slight chance of tstms after midnight. .THU...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 6 seconds. A chance of showers and tstms. .THU NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 7 seconds. A slight chance of showers and tstms after midnight. .FRI...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 7 seconds. A slight chance of showers and tstms. .FRI NIGHT...SW winds 10 kt. Seas 3 ft. A slight chance of showers and tstms after midnight. .SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .SAT NIGHT...SW winds 10 kt. Seas 3 ft. A slight chance of showers and tstms. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. .SUN NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms. $$