FZUS52 KCHS 141819 CWFCHS Coastal Waters Forecast National Weather Service Charleston SC 219 PM EDT Tue Apr 14 2026 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 AMZ300-150800- 219 PM EDT Tue Apr 14 2026 .Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... Atlantic high pressure will prevail through the weekend. $$ AMZ330-150800- Charleston Harbor- 219 PM EDT Tue Apr 14 2026 .THIS AFTERNOON...S winds 10 kt. .TONIGHT...SW winds 5 to 10 kt. Patchy fog after midnight. .WED...SW winds 5 kt, becoming S in the afternoon. Patchy fog in the morning. .WED NIGHT...SW winds 5 to 10 kt. .THU...SW winds 5 to 10 kt. .THU NIGHT...S winds 5 to 10 kt. .FRI...SW winds 5 to 10 kt. .FRI NIGHT...SW winds 5 to 10 kt. .SAT...SW winds 5 to 10 kt. .SAT NIGHT...S winds 10 kt. Unless otherwise noted, waves 1 foot or less. Charleston Harbor water temperature 69 degrees. $$ AMZ350-150800- Waters from South Santee River to Edisto Beach SC out 20 NM- 219 PM EDT Tue Apr 14 2026 .THIS AFTERNOON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 10 seconds. .TONIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 10 seconds. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 3 seconds. .WED NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at 9 seconds and S 2 ft at 4 seconds. .THU...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 9 seconds. .THU NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at 5 seconds and E 2 ft at 9 seconds. .FRI...SW winds 10 to 15 kt. Seas 3 ft. .FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft. .SAT...SW winds 10 to 15 kt. Seas 3 ft. .SAT NIGHT...S winds 15 kt. Seas 3 to 4 ft. $$ AMZ352-150800- Waters from Edisto Beach SC to Savannah GA out 20 NM- 219 PM EDT Tue Apr 14 2026 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds. .TONIGHT...S winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. .WED...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 10 seconds. .WED NIGHT...S winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. .THU...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. .THU NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 9 seconds. .FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 ft. .SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 ft. $$ AMZ354-150800- Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 219 PM EDT Tue Apr 14 2026 .THIS AFTERNOON...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 9 seconds. .TONIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 9 seconds. .WED...SW winds 5 to 10 kt, becoming S in the afternoon. Seas 3 ft. Wave Detail: E 3 ft at 9 seconds. .WED NIGHT...S winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. .THU...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds and S 1 foot at 4 seconds. .THU NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at 4 seconds and E 3 ft at 9 seconds. .FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 ft. .SAT...S winds 10 to 15 kt. Seas 2 to 3 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 ft. $$ AMZ374-150800- Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 219 PM EDT Tue Apr 14 2026 .THIS AFTERNOON...S winds 5 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds. .TONIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds. .WED...SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds. .WED NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds. .THU...SW winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds. .THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 9 seconds. .FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. .SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. $$