973
FZUS52 KCHS 250509
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1209 AM EST Tue Nov 25 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

AMZ300-251815-
1209 AM EST Tue Nov 25 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through today, then a strong cold
front will sweep through late Wednesday. High pressure will usher
in colder weather Thursday through the weekend.

$$

AMZ330-251815-
Charleston Harbor-
1209 AM EST Tue Nov 25 2025

.REST OF TONIGHT...NE winds 10 kt, becoming E.
.TUE...SE winds 5 to 10 kt. A slight chance of showers in the
morning.
.TUE NIGHT...S winds 5 to 10 kt.
.WED...SW winds 10 kt.
.WED NIGHT...W winds 10 kt, becoming NW after midnight.
.THU...NW winds 5 to 10 kt.
.THU NIGHT...NW winds 10 kt.
.FRI...N winds 10 kt.
.FRI NIGHT...N winds 5 to 10 kt.
.SAT...NE winds 10 to 15 kt.
.SAT NIGHT...NE winds 10 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 64 degrees.

$$

AMZ350-251815-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1209 AM EST Tue Nov 25 2025

.REST OF TONIGHT...NE winds 10 kt, becoming E. Seas 2 to 3 ft.
Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 9 seconds. A
slight chance of showers.
.TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 5 seconds and SE 1 foot at 9 seconds. A chance of showers.
.TUE NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with
gusts to 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: SE
3 ft at 6 seconds and SE 1 foot at 9 seconds.
.WED...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 7 seconds.
.WED NIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after
midnight. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 6 seconds and E
2 ft at 8 seconds.
.THU...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft
at 4 seconds and SE 1 foot at 8 seconds.
.THU NIGHT...NW winds 10 to 15 kt, increasing to 15 to 20 kt
after midnight. Seas 2 to 3 ft.
.FRI...N winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT...NE winds 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...E winds 15 kt. Seas 3 to 4 ft.

$$

AMZ352-251815-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1209 AM EST Tue Nov 25 2025

.REST OF TONIGHT...NE winds 5 to 10 kt, becoming E. Seas 1 to
2 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 9
seconds.
.TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 5 seconds and SE 1 foot at 9 seconds. A slight chance of
showers in the morning.
.TUE NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 6 seconds and
SE 1 foot at 9 seconds.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft. Wave
Detail: SE 3 ft at 7 seconds.
.WED NIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E
2 ft at 7 seconds.
.THU...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft
at 4 seconds and E 1 foot at 8 seconds.
.THU NIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft.
.FRI...N winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT...NE winds 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...E winds 15 kt. Seas 3 to 4 ft.

$$

AMZ354-251815-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1209 AM EST Tue Nov 25 2025

.REST OF TONIGHT...NE winds 5 to 10 kt, becoming E. Seas 1 to 2 ft.
Wave Detail: E 2 ft at 5 seconds and SE 1 foot at 9 seconds.
.TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 5 seconds and SE 1 foot at 9 seconds.
.TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds.
.WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 5 seconds and E 1 foot at 8 seconds.
.WED NIGHT...W winds 10 to 15 kt, becoming NW 15 to 20 kt after
midnight. Seas 2 to 3 ft. Wave Detail: NW 3 ft at 4 seconds and E
2 ft at 7 seconds.
.THU...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds and E
1 foot at 8 seconds.
.THU NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Seas 2 to
3 ft, building to 3 to 4 ft after midnight.
.FRI...N winds 15 to 20 kt. Seas 3 to 4 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 15 to 20 kt. Seas 3 to 4 ft.

$$

AMZ374-251815-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1209 AM EST Tue Nov 25 2025

.REST OF TONIGHT...E winds 10 to 15 kt, becoming SE. Seas 3 to
4 ft. Wave Detail: E 3 ft at 6 seconds and SE 1 foot at 9
seconds. A slight chance of showers late.
.TUE...SE winds 5 to 10 kt, becoming S in the afternoon. Seas
3 to 4 ft. Wave Detail: SE 3 ft at 5 seconds and SE 1 foot at
9 seconds. A slight chance of showers and tstms in the morning.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SW
3 ft at 4 seconds and E 3 ft at 7 seconds.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: SW 3 ft at 5 seconds and E 3 ft at 7 seconds.
.WED NIGHT...W winds 15 to 20 kt, becoming NW after midnight.
Seas 3 to 4 ft. Wave Detail: NW 4 ft at 4 seconds and E 2 ft at
7 seconds.
.THU...NW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NW 4 ft
at 5 seconds and E 2 ft at 8 seconds.
.THU NIGHT...NW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
5 ft.
.FRI...N winds 15 to 20 kt. Seas 4 to 5 ft.
.FRI NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft.
.SAT NIGHT...E winds 15 to 20 kt. Seas 4 to 5 ft.

Winds and seas higher in and near tstms.

$$