401
FZUS52 KCHS 231300
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
759 AM EST Sun Nov 23 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

AMZ300-240100-
759 AM EST Sun Nov 23 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front will push south through the area this morning. High
pressure will prevail through early next week. Another cold front
is expected to impact the area mid week. High pressure and dry
weather is expected for Thanksgiving.

$$

AMZ330-240100-
Charleston Harbor-
759 AM EST Sun Nov 23 2025

.TODAY...N winds 5 kt, becoming NE late. Patchy fog late this
morning with vsby 1 to 3 NM.
.TONIGHT...NE winds 5 kt.
.MON...NE winds 5 to 10 kt.
.MON NIGHT...E winds 5 to 10 kt.
.TUE...S winds 5 to 10 kt.
.TUE NIGHT...S winds 5 to 10 kt.
.WED...SW winds 10 kt.
.WED NIGHT...W winds 10 kt. A slight chance of showers and tstms.
.THU...NW winds 10 kt.
.THU NIGHT...NW winds 5 to 10 kt.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 63 degrees.

$$

AMZ350-240100-
Waters from South Santee River to Edisto Beach SC out 20 NM-
759 AM EST Sun Nov 23 2025

.TODAY...N winds 10 kt, becoming NE this afternoon. Seas 2 ft.
Wave Detail: SW 2 ft at 5 seconds and N 1 foot at 2 seconds.
Patchy fog this morning with vsby 1 NM or less.
.TONIGHT...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft
at 5 seconds and SW 1 foot at 5 seconds.
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft
at 5 seconds and SW 1 foot at 4 seconds.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 5 seconds and SE 1 foot at 9 seconds.
.TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 5 seconds and SE 1 foot at 8 seconds. A slight chance of
showers.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds.
.WED...SW winds 10 to 15 kt. Seas 3 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 3 ft. A slight chance of
showers and tstms.
.THU...N winds 15 to 20 kt. Seas 2 to 3 ft.
.THU NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

$$

AMZ352-240100-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
759 AM EST Sun Nov 23 2025

.TODAY...NW winds 10 kt, becoming E late. Seas 2 ft. Wave Detail:
SW 2 ft at 4 seconds.
.TONIGHT...NE winds 5 to 10 kt. Seas 1 foot or less. Wave Detail:
NE 1 foot at 3 seconds and S 1 foot at 4 seconds.
.MON...NE winds 10 to 15 kt. Seas 2 ft. Wave Detail: NE 2 ft at
3 seconds and SE 1 foot at 9 seconds.
.MON NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 5 seconds and SE
1 foot at 9 seconds.
.TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
5 seconds and SE 1 foot at 9 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds.
.WED...SW winds 10 kt. Seas 2 to 3 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.THU...NW winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft.

Winds and seas higher in and near tstms.

$$

AMZ354-240100-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
759 AM EST Sun Nov 23 2025

.TODAY...NW winds 5 to 10 kt, becoming NE this afternoon. Seas
2 ft. Wave Detail: W 2 ft at 4 seconds and E 1 foot at 7 seconds.
.TONIGHT...NE winds 5 to 10 kt. Seas 1 foot or less, then around
2 ft after midnight. Wave Detail: NE 1 foot at 3 seconds and S
1 foot at 4 seconds, becoming NE 1 foot at 3 seconds and SE
1 foot at 9 seconds.
.MON...NE winds 10 to 15 kt. Seas 2 ft. Wave Detail: E 2 ft at
4 seconds and SE 1 foot at 9 seconds.
.MON NIGHT...E winds 10 to 15 kt, becoming SE 5 to 10 kt after
midnight. Seas 2 ft. Wave Detail: E 2 ft at 5 seconds and SE
1 foot at 9 seconds.
.TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
5 seconds and SE 1 foot at 9 seconds.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds.
.WED...SW winds 10 kt. Seas 2 to 3 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance
of showers.
.THU...NW winds 15 kt. Seas 2 to 3 ft.
.THU NIGHT...N winds 15 to 20 kt. Seas 2 to 3 ft.

$$

AMZ374-240100-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
759 AM EST Sun Nov 23 2025

.TODAY...NW winds 10 to 15 kt, becoming N this afternoon. Seas
2 to 3 ft. Wave Detail: W 2 ft at 4 seconds and E 1 foot at
7 seconds.
.TONIGHT...NE winds 10 to 15 kt. Seas 2 ft. Wave Detail: NE 2 ft
at 3 seconds and SW 1 foot at 4 seconds.
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft
at 5 seconds and SE 1 foot at 9 seconds.
.MON NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 5 seconds and SE 1 foot at 9 seconds. A slight chance of
showers after midnight.
.TUE...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
7 seconds. A slight chance of showers in the morning.
.TUE NIGHT...S winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 3 ft. Wave Detail: SE 3 ft at 7 seconds.
.WED...SW winds 10 kt. Seas 3 ft.
.WED NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance
of showers and tstms.
.THU...N winds 15 to 20 kt. Seas 3 to 4 ft.
.THU NIGHT...N winds 15 to 20 kt. Seas 4 to 5 ft.

Winds and seas higher in and near tstms.

$$