Expires:202604162315;;989638
FZUS52 KCHS 160903
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
503 AM EDT Thu Apr 16 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


AMZ354-162315-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
503 AM EDT Thu Apr 16 2026

.TODAY...S winds 10 to 15 kt with gusts to 20 kt. Seas 2 to 3 ft.
Wave Detail: SE 3 ft at 9 seconds and S 2 ft at 4 seconds. 
.TONIGHT...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 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and S 2 ft at
5 seconds. 
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft
at 9 seconds. 
.SAT...SW winds 5 to 10 kt, becoming S 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. 
.SAT NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft
at 4 seconds and SE 3 ft at 8 seconds. 
.SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. 
.SUN NIGHT...N winds 20 to 25 kt with gusts to 30 kt. Seas 4 to 
5 ft.
.MON...NE winds 20 to 25 kt with gusts to 30 kt. Seas 5 to 7 ft.
.MON NIGHT...E winds 15 to 20 kt. Seas 4 to 5 ft.  

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