Station List

National Weather Service Marine Forecast FZUS52 KCHS

FZUS52 KCHS 131656
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1156 AM EST Tue Jan 13 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

AMZ300-140600
1156 AM EST Tue Jan 13 2026

.Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure builds across the area through the remainder of today, followed by a cold front Wednesday night into Thursday. Chilly high pressure will build across the region by early next week.

AMZ330-140600
Charleston Harbor
1156 AM EST Tue Jan 13 2026

THIS AFTERNOON
NW winds 5 kt, becoming SW.

TONIGHT
SW winds 5 kt.

WED
W winds 5 to 10 kt. A slight chance of showers in the morning, then a chance of showers in the afternoon.

WED NIGHT
W winds 10 kt. A slight chance of showers after midnight.

THU
NW winds 10 to 15 kt.

THU NIGHT
NW winds 10 to 15 kt, becoming N 5 to 10 kt after midnight.

FRI
W winds 5 to 10 kt.

FRI NIGHT
SW winds 10 kt.

SAT
SW winds 10 to 15 kt.

SAT NIGHT
W winds 10 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 55 degrees.

AMZ350-140600
Waters from South Santee River to Edisto Beach SC out 20 NM
1156 AM EST Tue Jan 13 2026

THIS AFTERNOON
NW winds 5 kt, becoming SW late. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds.

TONIGHT
SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds and W 1 foot at 2 seconds.

WED
W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon.

WED NIGHT
W winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 1 foot at 8 seconds. A chance of showers after midnight.

THU
NW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: W 4 ft at 6 seconds and SE 1 foot at 8 seconds. A slight chance of showers in the morning.

THU NIGHT
NW winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and E 2 ft at 8 seconds.

FRI
W winds 10 to 15 kt. Seas 2 to 3 ft.

FRI NIGHT
SW winds 15 to 20 kt. Seas 3 to 4 ft.

SAT
SW winds 15 to 20 kt. Seas 4 to 5 ft.

SAT NIGHT
W winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance of showers.

AMZ352-140600
Waters from Edisto Beach SC to Savannah GA out 20 NM
1156 AM EST Tue Jan 13 2026

THIS AFTERNOON
NW winds 5 kt, becoming SW late. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds.

TONIGHT
SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at 7 seconds and W 1 foot at 2 seconds.

WED
W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft at 7 seconds. A chance of showers.

WED NIGHT
W winds 15 to 20 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds, becoming SW 3 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers after midnight.

THU
NW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 4 seconds and SE 1 foot at 8 seconds. A slight chance of showers in the morning.

THU NIGHT
NW winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at 8 seconds, becoming NW 3 ft at 4 seconds and NE 1 foot at 8 seconds.

FRI
W winds 5 to 10 kt. Seas 2 ft.

FRI NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft.

SAT
SW winds 15 kt. Seas 3 to 4 ft.

SAT NIGHT
W winds 15 to 20 kt. Seas 2 to 3 ft. A slight chance of showers.

AMZ354-140600
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary
1156 AM EST Tue Jan 13 2026

THIS AFTERNOON
N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 7 seconds.

TONIGHT
SW winds 5 kt, becoming W after midnight. Seas 2 ft. Wave Detail: E 2 ft at 8 seconds.

WED
W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and E 2 ft at 8 seconds. A slight chance of showers in the morning, then a chance of showers in the afternoon.

WED NIGHT
W winds 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds. A slight chance of showers after midnight.

THU
NW winds 15 to 20 kt with gusts to 25 kt. Seas 2 to 3 ft, building to 3 to 4 ft in the afternoon. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at 8 seconds. A slight chance of showers in the morning.

THU NIGHT
NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and E 1 foot at 8 seconds.

FRI
W winds 5 to 10 kt. Seas 2 ft.

FRI NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft.

SAT
SW winds 10 to 15 kt. Seas 2 to 3 ft.

SAT NIGHT
W winds 15 to 20 kt. Seas 2 to 3 ft.

AMZ374-140600
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM
1156 AM EST Tue Jan 13 2026

THIS AFTERNOON
N winds 5 to 10 kt. Seas 3 ft. Wave Detail: NE 3 ft at 7 seconds.

TONIGHT
W winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 8 seconds.

WED
W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 3 ft at 4 seconds and E 2 ft at 8 seconds. A chance of showers.

WED NIGHT
W winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: W 4 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers after midnight.

THU
NW winds 20 to 25 kt. Seas 4 to 5 ft, building to 4 to 6 ft in the afternoon. Wave Detail: W 5 ft at 5 seconds and E 1 foot at 8 seconds, becoming NW 5 ft at 5 seconds and E 1 foot at 9 seconds. A slight chance of showers in the morning.

THU NIGHT
NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 6 ft at 5 seconds and E 1 foot at 9 seconds.

FRI
NW winds 5 to 10 kt. Seas 3 to 4 ft.

FRI NIGHT
SW winds 10 to 15 kt. Seas 3 to 4 ft.

SAT
SW winds 15 to 20 kt. Seas 3 to 4 ft.

SAT NIGHT
W winds 20 to 25 kt. Seas 4 to 5 ft. A slight chance of showers.