655
FZUS52 KCHS 030218
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
918 PM EST Tue Dec 2 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

AMZ300-031530-
918 PM EST Tue Dec 2 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Low pressure will exit the region tonight. High pressure will
them prevail through middle of this week before another frontal
system impacts the area Friday into the weekend.

$$

AMZ330-031530-
Charleston Harbor-
918 PM EST Tue Dec 2 2025

.TONIGHT...W winds 15 to 20 kt, becoming N 5 to 10 kt.
.WED...N winds 5 to 10 kt.
.WED NIGHT...N winds 5 kt.
.THU...NW winds 5 kt.
.THU NIGHT...N 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. Showers.
.FRI NIGHT...N winds 5 to 10 kt. Showers.
.SAT...N winds 5 to 10 kt. Showers.
.SAT NIGHT...N winds 5 kt. Showers likely.
.SUN...N winds 5 to 10 kt. A chance of showers.
.SUN NIGHT...N winds 5 to 10 kt. A slight chance of showers.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 59 degrees.

$$

AMZ350-031530-
Waters from South Santee River to Edisto Beach SC out 20 NM-
918 PM EST Tue Dec 2 2025

.TONIGHT...W winds 15 to 20 kt, becoming N 10 to 15 kt. Seas 3 to
5 ft, subsiding to 2 to 4 ft. Wave Detail: S 6 ft at 8 seconds,
becoming SE 4 ft at 8 seconds.
.WED...NE winds 10 to 15 kt, becoming N 5 to 10 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 6 seconds and
S 2 ft at 7 seconds, becoming NE 3 ft at 6 seconds and S 1 foot at
7 seconds.
.WED NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds.
.THU...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 10 seconds.
.THU NIGHT...N winds 5 to 10 kt, becoming NE after midnight. Seas
2 to 3 ft. Wave Detail: E 3 ft at 10 seconds. A slight chance of
showers in the evening, then a chance of showers after midnight.
.FRI...NE winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at
10 seconds. Showers.
.FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Showers.
.SAT...N winds 10 kt. Seas 3 to 4 ft. Showers.
.SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely.
.SUN...N winds 10 kt. Seas 2 to 3 ft. A chance of showers.
.SUN NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance
of showers.

Winds and seas higher in and near tstms.

$$

AMZ352-031530-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
918 PM EST Tue Dec 2 2025

.TONIGHT...W winds 15 kt with gusts to 20 kt, becoming N 10 to
15 kt. Seas 3 to 5 ft, subsiding to 2 to 4 ft. Wave Detail:
SE 5 ft at 8 seconds, becoming SE 4 ft at 8 seconds and NW 1 foot
at 3 seconds.
.WED...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds and W 1 foot at 3 seconds.
.WED NIGHT...N winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 7 seconds.
.THU...N winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at
10 seconds.
.THU NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 10 seconds. A chance of showers.
.FRI...NE winds 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
10 seconds. Showers.
.FRI NIGHT...N winds 10 kt. Seas 3 to 4 ft. Showers.
.SAT...N winds 5 to 10 kt. Seas 2 to 3 ft. Showers.
.SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely.
.SUN...N winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
.SUN NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ354-031530-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
918 PM EST Tue Dec 2 2025

.TONIGHT...W winds 15 kt with gusts to 20 kt, becoming N 10 to
15 kt late. Seas 2 to 4 ft. Wave Detail: SE 4 ft at 8 seconds and
NW 3 ft at 4 seconds.
.WED...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds and N 2 ft at 3 seconds.
.WED NIGHT...N winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 8 seconds.
.THU...N winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at
7 seconds.
.THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE
3 ft at 9 seconds. A chance of showers.
.FRI...NE winds 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at
9 seconds. A chance of showers in the morning, then showers
likely in the afternoon.
.FRI NIGHT...NW winds 10 kt. Seas 3 ft. Showers likely.
.SAT...N winds 10 kt. Seas 2 to 3 ft. Showers.
.SAT NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely.
.SUN...N winds 10 kt. Seas 2 to 3 ft. A chance of showers.
.SUN NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ374-031530-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
918 PM EST Tue Dec 2 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM EST WEDNESDAY...

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

Winds and seas higher in and near tstms.

$$