619
FZUS52 KCHS 032140
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
439 PM EST Wed Dec 3 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

AMZ300-041000-
439 PM EST Wed Dec 3 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail across the region before a frontal
system impacts the area Friday into the weekend. High pressure
will then return next week.

$$

AMZ330-041000-
Charleston Harbor-
439 PM EST Wed Dec 3 2025

.TONIGHT...N winds 5 kt.
.THU...NW winds 5 kt.
.THU NIGHT...NE winds 5 kt. A slight chance of showers in the
evening, then a chance of showers after midnight.
.FRI...NE winds 5 to 10 kt, becoming N in the afternoon. Showers.
.FRI NIGHT...N winds 5 to 10 kt. Showers.
.SAT...N winds 5 kt. Showers.
.SAT NIGHT...N winds 5 kt. Showers likely.
.SUN...NE winds 5 to 10 kt. A chance of showers.
.SUN NIGHT...N winds 5 to 10 kt. A chance of showers.
.MON...N winds 10 to 15 kt. A slight chance of showers.
.MON NIGHT...N winds 10 to 15 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 59 degrees.

$$

AMZ350-041000-
Waters from South Santee River to Edisto Beach SC out 20 NM-
439 PM EST Wed Dec 3 2025

.TONIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE
2 ft at 5 seconds and SE 2 ft at 8 seconds.
.THU...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 11 seconds and NE 1 foot at 5 seconds.
.THU NIGHT...NE winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft
at 10 seconds and NE 1 foot at 4 seconds. A slight chance of
showers in the evening, then a chance of showers after midnight.
.FRI...E winds 5 to 10 kt, becoming NW 10 to 15 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: SE 3 ft at 5 seconds and
SE 3 ft at 10 seconds. Showers.
.FRI NIGHT...N winds 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 6 seconds and E 3 ft at 10 seconds. Showers.
.SAT...N winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: S 2 ft at
6 seconds and E 2 ft at 10 seconds. Showers.
.SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Showers.
.SUN...NE winds 10 kt. Seas 2 to 3 ft. Showers likely.
.SUN NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft. A chance of
showers.
.MON...N winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of
showers.
.MON NIGHT...N winds 15 to 20 kt. Seas 4 to 6 ft.

$$

AMZ352-041000-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
439 PM EST Wed Dec 3 2025

.TONIGHT...N winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and NE 1 foot at 4 seconds.
.THU...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 11 seconds and NE 1 foot at 5 seconds.
.THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 11 seconds and NE 1 foot at 5 seconds. A chance of
showers.
.FRI...NE winds 10 kt, becoming NW in the afternoon. Seas 2 to
3 ft, building to 3 to 4 ft in the afternoon. Wave Detail: E 3 ft
at 10 seconds, becoming E 3 ft at 10 seconds and S 2 ft at
5 seconds. Showers.
.FRI NIGHT...N winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 6 seconds and E 3 ft at 10 seconds. Showers.
.SAT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at
5 seconds and E 2 ft at 10 seconds. Showers.
.SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Showers with a
slight chance of tstms in the evening, then showers likely after
midnight.
.SUN...NE winds 10 kt. Seas 2 to 3 ft. Showers likely.
.SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers.
.MON...N winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance of
showers.
.MON NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$

AMZ354-041000-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
439 PM EST Wed Dec 3 2025

.TONIGHT...N winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
8 seconds and NE 1 foot at 4 seconds.
.THU...N winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and NE 1 foot at 5 seconds. A slight chance of showers
in the afternoon.
.THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 11 seconds and NE 1 foot at 5 seconds. A chance of
showers.
.FRI...E winds 10 kt, becoming SW in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 2 ft at 5 seconds and E 2 ft at 10 seconds.
A chance of showers in the morning, then showers likely in the
afternoon.
.FRI NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 5 seconds and E 2 ft at 10 seconds. Showers likely.
.SAT...N winds 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
10 seconds and NE 1 foot at 3 seconds. Showers likely in the
morning, then showers with a slight chance of tstms in the
afternoon.
.SAT NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of tstms in the evening. Showers.
.SUN...NE winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely.
.SUN NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers.
.MON...N winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance of
showers.
.MON NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-041000-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
439 PM EST Wed Dec 3 2025

.TONIGHT...NW winds 10 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at
4 seconds and E 2 ft at 8 seconds.
.THU...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
11 seconds and N 2 ft at 6 seconds. A slight chance of showers in
the afternoon.
.THU NIGHT...NE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft
at 10 seconds and NE 2 ft at 5 seconds. A chance of showers.
.FRI...SE winds 10 to 15 kt, becoming SW with gusts to 20 kt in
the afternoon. Seas 3 to 4 ft, building to 4 to 5 ft in the
afternoon. Wave Detail: SE 3 ft at 4 seconds and E 3 ft at
10 seconds, becoming S 4 ft at 5 seconds and E 3 ft at
10 seconds. A chance of showers in the morning, then showers
likely in the afternoon.
.FRI NIGHT...W winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: S 4 ft at 5 seconds and E
3 ft at 10 seconds, becoming S 3 ft at 5 seconds and E 3 ft at
10 seconds. Showers likely, mainly in the evening.
.SAT...NW winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at
10 seconds and SW 2 ft at 4 seconds. A chance of showers in the
morning, then showers in the afternoon.
.SAT NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance
of tstms in the evening. Showers.
.SUN...NE winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely.
.SUN NIGHT...N winds 15 to 20 kt. Seas 4 to 5 ft. A chance of
showers.
.MON...N winds 15 to 20 kt. Seas 4 to 6 ft. A slight chance of
showers.
.MON NIGHT...N winds 15 to 20 kt. Seas 4 to 6 ft.

Winds and seas higher in and near tstms.

$$