698
FZUS52 KCHS 070939
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
439 AM EST Sun Dec 7 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

AMZ300-072200-
439 AM EST Sun Dec 7 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A frontal system will maintain unsettled weather into Monday,
then cold high pressure will build in. A reinforcing cold front
will move through Friday.

$$

AMZ330-072200-
Charleston Harbor-
439 AM EST Sun Dec 7 2025

.TODAY...NE winds 5 to 10 kt. A slight chance of showers late
this morning. A chance of showers early this afternoon, then a
slight chance of showers late.
.TONIGHT...N winds 5 to 10 kt. A chance of showers. Vsby 1 to
3 NM.
.MON...N winds 10 to 15 kt. A chance of showers in the morning.
.MON NIGHT...N winds 10 to 15 kt with gusts to 20 kt.
.TUE...N winds 5 to 10 kt.
.TUE NIGHT...NW winds 5 kt.
.WED...W winds 5 to 10 kt.
.WED NIGHT...W winds 5 to 10 kt.
.THU...W winds 5 to 10 kt.
.THU NIGHT...SW winds 5 to 10 kt. A slight chance of showers.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 57 degrees.

$$

AMZ350-072200-
Waters from South Santee River to Edisto Beach SC out 20 NM-
439 AM EST Sun Dec 7 2025

.TODAY...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 9 seconds and S 1 foot at 5 seconds. A slight chance of
showers late this morning. A chance of showers this afternoon.
.TONIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE
2 ft at 3 seconds and E 2 ft at 9 seconds. A chance of showers.
Vsby 1 to 3 NM.
.MON...N winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft.
Wave Detail: NE 3 ft at 4 seconds and E 2 ft at 9 seconds. A
chance of showers, mainly in the morning.
.MON NIGHT...N winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 6 seconds
and E 5 ft at 9 seconds.
.TUE...N winds 15 to 20 kt, diminishing to 5 to 10 kt in the
afternoon. Seas 4 to 6 ft, subsiding to 4 to 5 ft in the
afternoon. Wave Detail: NE 5 ft at 9 seconds, becoming E 5 ft at
9 seconds.
.TUE NIGHT...NW winds 5 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 10 seconds.
.WED...W winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft.
.THU...W winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers.

$$

AMZ352-072200-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
439 AM EST Sun Dec 7 2025

.TODAY...NE winds 5 kt, increasing to 10 kt late this morning.
Seas 2 ft. Wave Detail: E 2 ft at 10 seconds and NE 1 foot at
5 seconds. A chance of showers late this morning. Showers likely
early this afternoon, then a chance of showers late.
.TONIGHT...N winds 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at
3 seconds and E 2 ft at 9 seconds. A chance of showers. Vsby 1 to
3 NM.
.MON...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 4 seconds and E 2 ft at 9 seconds. A chance of showers in the
morning.
.MON NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE
4 ft at 4 seconds and SE 2 ft at 9 seconds.
.TUE...N 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: NE 4 ft
at 5 seconds and E 4 ft at 9 seconds.
.TUE NIGHT...N winds 5 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at
9 seconds.
.WED...W winds 10 to 15 kt. Seas 3 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft.
.THU...W winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers.

$$

AMZ354-072200-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
439 AM EST Sun Dec 7 2025

.TODAY...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE
2 ft at 3 seconds and E 2 ft at 10 seconds. A chance of showers
early this morning, then showers late this morning. Vsby 1 to
3 NM this morning, then 1 to 3 NM late.
.TONIGHT...N winds 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at
3 seconds and E 2 ft at 9 seconds. A chance of showers. Vsby 1 NM
or less.
.MON...N winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to 4 ft
in the afternoon. Wave Detail: NE 2 ft at 4 seconds and E 2 ft at
9 seconds. A chance of showers in the morning.
.MON NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE
4 ft at 4 seconds and E 2 ft at 9 seconds.
.TUE...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 6 seconds and
E 4 ft at 9 seconds.
.TUE NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 9 seconds.
.WED...W winds 5 to 10 kt. Seas 3 to 4 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 3 ft.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers.

$$

AMZ374-072200-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
439 AM EST Sun Dec 7 2025

.TODAY...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 10 seconds. Showers.
.TONIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NE
3 ft at 9 seconds and NE 2 ft at 4 seconds. Showers likely,
mainly in the evening. Vsby 1 NM or less, increasing to 1 to 3 NM
after midnight.
.MON...N winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to 5 ft
in the afternoon. Wave Detail: NE 3 ft at 4 seconds and E 2 ft at
9 seconds, becoming N 3 ft at 5 seconds and E 2 ft at 9 seconds.
A chance of showers, mainly in the morning.
.MON NIGHT...N winds 20 kt with gusts to 25 kt. Seas 4 to 6 ft,
building to 5 to 6 ft after midnight. Wave Detail: N 5 ft at
5 seconds and SE 2 ft at 9 seconds, becoming NE 5 ft at 6 seconds
and SE 2 ft at 9 seconds.
.TUE...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 5 to 6 ft, subsiding to 4 to 6 ft in the
afternoon. Wave Detail: E 6 ft at 9 seconds and NE 5 ft at
6 seconds, becoming NE 6 ft at 9 seconds.
.TUE NIGHT...N winds 5 to 10 kt. Seas 4 to 6 ft, subsiding to
4 to 5 ft after midnight. Wave Detail: NE 5 ft at 9 seconds,
becoming E 5 ft at 10 seconds.
.WED...W winds 5 to 10 kt. Seas 4 to 5 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 4 to 5 ft.
.THU...W winds 10 to 15 kt. Seas 4 to 5 ft.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft.

$$