849
FZUS52 KCHS 012140
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
439 PM 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

AMZ300-021000-
439 PM 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 of this week
before the next frontal system impacts the area Friday into the
weekend.

$$

AMZ330-021000-
Charleston Harbor-
439 PM EST Mon Dec 1 2025

.TONIGHT...NE winds 5 to 10 kt. A slight chance of showers late
this evening. A chance of showers with a slight chance of tstms
after midnight, then showers with a chance of tstms late.
.TUE...W winds 5 to 10 kt. Showers with a chance of tstms in the
morning, then showers likely in the afternoon.
.TUE NIGHT...NW winds 5 to 10 kt, becoming N after midnight.
.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 10 kt. A chance of showers.
.FRI NIGHT...N winds 5 to 10 kt. Showers.
.SAT...NW winds 5 to 10 kt. Showers likely.
.SAT NIGHT...NW winds 5 to 10 kt. A chance of showers.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 60 degrees.

$$

AMZ350-021000-
Waters from South Santee River to Edisto Beach SC out 20 NM-
439 PM EST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EST TUESDAY THROUGH
LATE TUESDAY NIGHT...

.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 late this evening. Showers with a chance of
tstms after midnight.
.TUE...SW winds 15 to 20 kt, becoming W in the afternoon. Seas
4 to 6 ft, building to 5 to 7 ft in the afternoon. Wave Detail: E
5 ft at 8 seconds, becoming SE 7 ft at 8 seconds and S 4 ft at
7 seconds. Showers. A chance of tstms, mainly in the morning.
Vsby 1 to 3 NM.
.TUE NIGHT...NW winds 10 to 15 kt, becoming N after midnight.
Seas 5 to 7 ft, subsiding to 4 to 5 ft after midnight. Wave
Detail: S 7 ft at 8 seconds, becoming SE 3 ft at 8 seconds and S
3 ft at 8 seconds.
.WED...NE winds 10 to 15 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. Wave Detail: SE 3 ft
at 11 seconds and NE 1 foot at 5 seconds.
.THU NIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. A slight chance of showers.
.FRI...NE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
.FRI NIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Showers.
.SAT...N winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely.
.SAT NIGHT...NW winds 10 kt. Seas 3 to 4 ft. A chance of showers.


Winds and seas higher in and near tstms.

$$

AMZ352-021000-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
439 PM EST Mon Dec 1 2025

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

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


Winds and seas higher in and near tstms.

$$

AMZ354-021000-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
439 PM EST Mon Dec 1 2025

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

Winds and seas higher in and near tstms.

$$

AMZ374-021000-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
439 PM EST Mon Dec 1 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 4 AM EST TUESDAY THROUGH
LATE TUESDAY NIGHT...

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

Winds and seas higher in and near tstms.

$$