797
FZUS52 KCHS 270523
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1223 AM EST Thu Nov 27 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

AMZ300-271830-
1223 AM EST Thu Nov 27 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through the weekend. A low pressure
system could impact the area early next week.

$$

AMZ330-271830-
Charleston Harbor-
1223 AM EST Thu Nov 27 2025

.REST OF TONIGHT...NW winds 15 kt with gusts to 20 kt
.THU...N winds 10 kt.
.THU NIGHT...NW winds 10 to 15 kt, increasing to 15 kt with gusts
to 20 kt.
.FRI...N winds 10 to 15 kt with gusts to 20 kt, becoming NW 5 to
10 kt in the afternoon.
.FRI NIGHT...N winds 5 to 10 kt.
.SAT...NE winds 10 kt.
.SAT NIGHT...NE winds 10 kt.
.SUN...SE winds 5 to 10 kt. A slight chance of showers.
.SUN NIGHT...W winds 5 kt. A chance of showers.
.MON...N winds 10 kt. A slight chance of showers.
.MON NIGHT...NE winds 5 to 10 kt. A chance of showers with a
slight chance of tstms.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 64 degrees.

$$

AMZ350-271830-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1223 AM EST Thu Nov 27 2025

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

Winds and seas higher in and near tstms.

$$

AMZ352-271830-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1223 AM EST Thu Nov 27 2025

.REST OF TONIGHT...NW winds 15 kt with gusts to 20 kt. Seas 2 to
3 ft. Wave Detail: NW 2 ft at 4 seconds and E 2 ft at 8 seconds.
.THU...N winds 10 to 15 kt, becoming NW late. Seas 2 to 3 ft.
Wave Detail: N 2 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. Wave Detail: N 3 ft at 4 seconds and
E 1 foot at 8 seconds, becoming N 3 ft at 4 seconds and E 1 foot
at 7 seconds.
.FRI...N winds 15 to 20 kt, becoming NW 10 kt in the afternoon.
Seas 3 to 4 ft, subsiding to 2 to 3 ft. Wave Detail: N 3 ft at 4
seconds and SE 1 foot at 7 seconds, becoming NW 2 ft at 3 seconds
and E 2 ft at 6 seconds.
.FRI NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 6 seconds and NW 1 foot at 3 seconds.
.SAT...NE winds 15 kt with gusts to 20 kt. Seas 2 to 3 ft. Wave
Detail: NE 3 ft at 4 seconds and SE 1 foot at 8 seconds.
.SAT NIGHT...E winds 10 to 15 kt. Seas 3 ft.
.SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers.
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers.

$$

AMZ354-271830-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1223 AM EST Thu Nov 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

.REST OF TONIGHT...NW winds 15 to 20 kt. Seas 2 to 3 ft. Wave
Detail: NW 2 ft at 3 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 E 1 foot at 8 seconds.
.THU NIGHT...NW winds 15 to 20 kt with gusts to 25 kt, increasing
to 20 to 25 kt with gusts to 30 kt. Seas 2 to 4 ft. Wave Detail:
N 3 ft at 4 seconds and E 1 foot at 8 seconds.
.FRI...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft. Wave Detail: N
3 ft at 4 seconds and E 1 foot at 7 seconds, becoming NE 3 ft at
6 seconds.
.FRI NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 6 seconds.
.SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft
at 5 seconds and SE 1 foot at 8 seconds.
.SAT NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 3 to 4 ft.
.SUN...SE winds 10 kt. Seas 3 ft. A slight chance of showers.
.SUN NIGHT...S winds 10 kt. Seas 3 ft. A chance of showers.
.MON...NE winds 10 to 15 kt. Seas 3 ft. A slight chance of
showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers.

$$

AMZ374-271830-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1223 AM EST Thu Nov 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH
FRIDAY MORNING...

.REST OF TONIGHT...NW winds 15 to 20 kt. Seas 3 to 4 ft. Wave
Detail: NW 3 ft at 4 seconds and E 2 ft at 8 seconds.
.THU...N winds 15 to 20 kt, becoming NW late. Seas 3 to 4 ft.
Wave Detail: NW 3 ft at 4 seconds and E 2 ft at 8 seconds.
.THU NIGHT...NW winds 15 to 20 kt with gusts to 25 kt, increasing
to 20 to 25 kt with gusts to 30 kt. Seas 4 to 5 ft. Wave Detail:
NW 5 ft at 5 seconds and E 2 ft at 9 seconds.
.FRI...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 4 to 5 ft, subsiding to 3 to 4 ft. Wave Detail: N
5 ft at 5 seconds and E 2 ft at 8 seconds, becoming NE 4 ft at 6
seconds.
.FRI NIGHT...N winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: NE 3 ft at 7 seconds and N 2 ft at 4 seconds.
.SAT...NE winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft
at 5 seconds and SE 1 foot at 8 seconds.
.SAT NIGHT...E winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft.
.SUN...SE winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of
showers.
.SUN NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers.
.MON...N winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
.MON NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. A chance of
showers.

$$