033
FZUS52 KCHS 010939
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
439 AM EST Mon Dec 1 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

AMZ300-012200-
439 AM EST Mon Dec 1 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A storm system will pass through the region late today into
Tuesday. High pressure then returns for the middle to end of this
week ahead of the next frontal system that could impact the area
Friday into the weekend.

$$

AMZ330-012200-
Charleston Harbor-
439 AM EST Mon Dec 1 2025

.TODAY...NE winds 10 to 15 kt.
.TONIGHT...NE winds 10 to 15 kt. A slight chance of showers in
the evening, then showers with a chance of tstms after midnight.
.TUE...W winds 10 kt. Showers with a chance of tstms in the
morning, then showers in the afternoon. Vsby 1 to 3 NM in the
morning.
.TUE NIGHT...NW winds 10 kt. A chance of showers in the evening.
.WED...NE 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.
.FRI...NE winds 5 to 10 kt. A chance of showers.
.FRI NIGHT...W winds 5 to 10 kt. Showers likely.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 60 degrees.

$$

AMZ350-012200-
Waters from South Santee River to Edisto Beach SC out 20 NM-
439 AM EST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
TUESDAY NIGHT...

.TODAY...NE winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
5 ft. Wave Detail: E 5 ft at 7 seconds.
.TONIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after
midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
Wave Detail: E 5 ft at 7 seconds, becoming E 5 ft at 8 seconds. A
chance of showers in the evening, then showers with a chance of
tstms after midnight with vsby 1 to 3 NM.
.TUE...SW winds 15 to 20 kt, becoming W in the afternoon. Seas
5 to 7 ft. Wave Detail: SE 7 ft at 8 seconds. Showers with a
chance of tstms in the morning, then showers with a slight chance
of tstms in the afternoon. Vsby 1 to 3 NM in the morning.
.TUE NIGHT...NW winds 15 kt, becoming N after midnight. Seas 5 to
7 ft, subsiding to 4 to 5 ft after midnight. Wave Detail: S 6 ft
at 8 seconds, becoming SE 4 ft at 8 seconds and W 3 ft at
7 seconds. A chance of showers in the evening.
.WED...NE winds 10 to 15 kt with gusts to 20 kt, diminishing to
5 to 10 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 8 seconds and NE 2 ft at 4 seconds.
.WED NIGHT...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...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers.
.FRI...NE winds 10 kt. Seas 3 ft. A chance of showers.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 4 to 5 ft. Showers
likely.

Winds and seas higher in and near tstms.

$$

AMZ352-012200-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
439 AM EST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING...

.TODAY...NE winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to
5 ft this afternoon. Wave Detail: NE 4 ft at 4 seconds and SE
2 ft at 9 seconds, becoming NE 4 ft at 5 seconds and SE 2 ft at
8 seconds.
.TONIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after
midnight. Seas 4 to 5 ft. Wave Detail: E 4 ft at 7 seconds. A
chance of showers in the evening, then showers with a chance of
tstms after midnight with vsby 1 to 3 NM.
.TUE...SW winds 15 to 20 kt, becoming W 10 to 15 kt in the
afternoon. Seas 4 to 5 ft, building to 4 to 6 ft in the
afternoon. Wave Detail: SE 5 ft at 8 seconds, becoming SE 6 ft at
8 seconds. Showers with a chance of tstms in the morning, then
showers with a slight chance of tstms in the afternoon. Vsby 1 to
3 NM in the morning.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 4 to 6 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: SE 6 ft at 8 seconds and
NW 1 foot at 3 seconds, becoming E 4 ft at 8 seconds and NW 2 ft
at 3 seconds. A chance of showers in the evening.
.WED...N winds 10 to 15 kt, becoming NE 5 to 10 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon. Wave Detail: SE 3 ft at 8 seconds and N 2 ft at
4 seconds, becoming NE 2 ft at 4 seconds and SE 2 ft at
8 seconds.
.WED NIGHT...N winds 5 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 5 seconds and SE 2 ft at 8 seconds.
.THU...NW winds 5 kt. Seas 2 to 3 ft.
.THU NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers.
.FRI...NE winds 10 kt. Seas 3 ft. A chance of showers.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely.


Winds and seas higher in and near tstms.

$$

AMZ354-012200-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
439 AM EST Mon Dec 1 2025

.TODAY...NE winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to
5 ft this afternoon. Wave Detail: NE 4 ft at 4 seconds and SE
2 ft at 8 seconds, becoming NE 4 ft at 5 seconds and SE 2 ft at
8 seconds. A slight chance of showers this afternoon.
.TONIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt after
midnight. Seas 4 to 5 ft. Wave Detail: E 4 ft at 7 seconds. A
chance of showers in the evening, then showers likely with a
chance of tstms after midnight with vsby 1 to 3 NM.
.TUE...SW winds 15 to 20 kt, becoming W in the afternoon. Seas
4 to 5 ft. Wave Detail: E 5 ft at 7 seconds. Showers with a
slight chance of tstms. Vsby 1 to 3 NM in the morning.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: SE 5 ft at 8 seconds and
NW 2 ft at 3 seconds, becoming E 3 ft at 8 seconds and NW 2 ft at
3 seconds. A chance of showers in the evening.
.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 4 seconds.
.WED NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 8 seconds and NE 1 foot at 4 seconds.
.THU...NW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers.
.FRI...NE winds 10 kt. Seas 2 to 3 ft. A chance of showers.
.FRI NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ374-012200-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
439 AM EST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
TUESDAY NIGHT...

.TODAY...NE winds 15 to 20 kt. Seas 4 to 5 ft, building to 5 to
6 ft this afternoon. Wave Detail: NE 4 ft at 4 seconds and SE
3 ft at 8 seconds, becoming NE 5 ft at 5 seconds and SE 3 ft at
8 seconds. A slight chance of showers early this afternoon. A
chance of showers late.
.TONIGHT...NE winds 15 to 20 kt, becoming SE after midnight. Seas
5 to 6 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: E
5 ft at 7 seconds, becoming E 4 ft at 7 seconds. A chance of
showers with a slight chance of tstms in the evening, then
showers with a chance of tstms after midnight with vsby 1 to
3 NM.
.TUE...SW winds 20 to 25 kt with gusts to 30 kt. Seas 6 to 8 ft.
Wave Detail: S 7 ft at 7 seconds and NE 3 ft at 7 seconds.
Showers with a chance of tstms in the morning, then showers with
a slight chance of tstms in the afternoon. Vsby 1 to 3 NM in the
morning.
.TUE NIGHT...NW winds 15 to 20 kt. Seas 4 to 6 ft, subsiding to
4 to 5 ft after midnight. Wave Detail: SE 5 ft at 8 seconds and W
3 ft at 4 seconds, becoming SE 4 ft at 8 seconds and NW 3 ft at
4 seconds. A chance of showers in the evening.
.WED...N winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: N 3 ft
at 4 seconds and E 3 ft at 8 seconds.
.WED NIGHT...N winds 10 kt. Seas 3 ft. Wave Detail: N 2 ft at
5 seconds and E 2 ft at 8 seconds.
.THU...N winds 5 to 10 kt. Seas 3 ft.
.THU NIGHT...N winds 5 to 10 kt. Seas 3 ft.
.FRI...E winds 10 kt. Seas 3 to 4 ft. A chance of showers.
.FRI NIGHT...S winds 15 to 20 kt. Seas 4 to 6 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$