494
FZUS52 KCHS 220939
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
439 AM EST Sat Nov 22 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

AMZ300-222200-
439 AM EST Sat Nov 22 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A cold front will dive across the area tonight, followed by the
return of high pressure early next week. Rain chances then return
late Wednesday into Thursday as another cold front takes aim at
the region.

$$

AMZ330-222200-
Charleston Harbor-
439 AM EST Sat Nov 22 2025

.TODAY...SW winds 10 kt.
.TONIGHT...SW winds 5 to 10 kt, becoming W after midnight.
.SUN...N winds 5 kt.
.SUN NIGHT...NE winds 5 kt.
.MON...NE winds 5 to 10 kt.
.MON NIGHT...E winds 5 to 10 kt.
.TUE...SE winds 5 to 10 kt. A slight chance of showers.
.TUE NIGHT...S winds 5 kt. A slight chance of showers and tstms.
.WED...SW winds 5 to 10 kt.
.WED NIGHT...W 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 62 degrees.

$$

AMZ350-222200-
Waters from South Santee River to Edisto Beach SC out 20 NM-
439 AM EST Sat Nov 22 2025

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


Winds and seas higher in and near tstms.

$$

AMZ352-222200-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
439 AM EST Sat Nov 22 2025

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

$$

AMZ354-222200-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
439 AM EST Sat Nov 22 2025

.TODAY...SW winds 10 to 15 kt. Seas 2 ft. Wave Detail: SW 2 ft at
4 seconds and E 1 foot at 5 seconds.
.TONIGHT...W winds 10 kt. Seas 2 ft. Wave Detail: SW 2 ft at
4 seconds and E 1 foot at 5 seconds.
.SUN...NW winds 10 kt, becoming N in the afternoon. Seas 2 ft.
Wave Detail: W 2 ft at 4 seconds and E 1 foot at 7 seconds.
.SUN NIGHT...NE winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 1 foot or less, then around 2 ft after midnight.
Wave Detail: S 1 foot at 4 seconds and NE 1 foot at 4 seconds,
becoming NE 2 ft at 3 seconds and SE 1 foot at 9 seconds.
.MON...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft
at 4 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.
.TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft.
.TUE NIGHT...S winds 5 to 10 kt. Seas 3 ft.
.WED...SW winds 5 to 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.

$$

AMZ374-222200-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
439 AM EST Sat Nov 22 2025

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

$$