443
FZUS52 KCHS 262220
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
620 PM EDT Sat Jul 26 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

AMZ300-271115-
620 PM EDT Sat Jul 26 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Atlantic high pressure will prevail through early next week,
while a trough of low pressure resides inland.

$$

AMZ330-271115-
Charleston Harbor-
620 PM EDT Sat Jul 26 2025

.TONIGHT...S winds 10 to 15 kt, becoming SW winds 5 to 10 kt later
this evening, then W late.
.SUN...W winds 5 to 10 kt, becoming S in the afternoon.
.SUN NIGHT...SW winds 10 kt.
.MON...SW winds 10 kt. A slight chance of showers and tstms in
the afternoon.
.MON NIGHT...SW winds 10 kt. A chance of showers and tstms.
.TUE...SW winds 10 kt. A chance of showers and tstms.
.TUE NIGHT...S winds 10 kt. A chance of showers and tstms.
.WED...S winds 10 to 15 kt. A chance of showers and tstms.
.WED NIGHT...S winds 10 to 15 kt. A slight chance of showers and
tstms.
.THU...SW winds 10 to 15 kt. A chance of showers and tstms.
.THU NIGHT...SW winds 10 to 15 kt. A chance of showers and tstms.


Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 88 degrees.

$$

AMZ350-271115-
Waters from South Santee River to Edisto Beach SC out 20 NM-
620 PM EDT Sat Jul 26 2025

.TONIGHT...SW winds 10 to 15 kt, becoming W late. Seas 2 to 3 ft.
Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SUN...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at 8 seconds.
.SUN NIGHT...SW winds 10 kt. Seas 2 ft. Wave Detail: SW 2 ft at
3 seconds and SE 2 ft at 8 seconds.
.MON...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW 2 ft at
4 seconds and SE 1 foot at 8 seconds.
.MON NIGHT...SW winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 1 foot at 8 seconds. A slight chance of showers
and tstms in the evening, then a chance of showers and tstms
after midnight.
.TUE...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 1 foot at 8 seconds. A chance of showers and
tstms.
.TUE NIGHT...SW winds 10 kt. Seas 2 ft. A chance of showers and
tstms.
.WED...S winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.WED NIGHT...S winds 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-271115-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
620 PM EDT Sat Jul 26 2025

.TONIGHT...SW winds 10 kt, becoming W late. Seas 2 ft. Wave
Detail: SE 2 ft at 8 seconds and S 1 foot at 3 seconds.
.SUN...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at
3 seconds.
.SUN NIGHT...SW winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
3 seconds and SE 2 ft at 8 seconds.
.MON...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW 2 ft at
4 seconds and SE 1 foot at 8 seconds.
.MON NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft
at 4 seconds and SE 1 foot at 8 seconds. A slight chance of
showers and tstms.
.TUE...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 1 foot at 8 seconds. A slight chance of showers
and tstms.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.
.WED...S winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.WED NIGHT...S winds 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.THU...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-271115-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
620 PM EDT Sat Jul 26 2025

.TONIGHT...S winds 10 kt, becoming SW after midnight. Seas 2 ft.
Wave Detail: E 2 ft at 7 seconds and S 1 foot at 3 seconds.
.SUN...NW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at
3 seconds.
.SUN NIGHT...SW winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
3 seconds and SE 2 ft at 8 seconds.
.MON...W winds 5 to 10 kt, becoming S in the afternoon. Seas
2 ft. Wave Detail: S 2 ft at 3 seconds and SE 1 foot at
8 seconds.
.MON NIGHT...S winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
3 seconds and E 1 foot at 8 seconds. A slight chance of showers
and tstms.
.TUE...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and E 1 foot at 8 seconds. A slight chance of showers
and tstms in the afternoon.
.TUE NIGHT...S winds 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.WED...S winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.WED NIGHT...S winds 10 to 15 kt. Seas 2 ft. A slight chance of
showers and tstms.
.THU...SW winds 10 to 15 kt. Seas 2 ft. A chance of showers and
tstms.
.THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-271115-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
620 PM EDT Sat Jul 26 2025

.TONIGHT...S winds 10 kt, becoming SW after midnight. Seas 2 ft.
Wave Detail: E 2 ft at 7 seconds and SW 1 foot at 3 seconds.
.SUN...NW winds 5 to 10 kt, becoming SW in the afternoon. Seas
2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and SE 2 ft at
8 seconds.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW 2 ft
at 3 seconds and SE 2 ft at 8 seconds.
.MON...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW 2 ft at
3 seconds and SE 2 ft at 8 seconds.
.MON NIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 3 seconds and SE 1 foot at 8 seconds. A slight chance of
showers and tstms after midnight.
.TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at
4 seconds and E 1 foot at 8 seconds. A slight chance of showers
and tstms.
.TUE NIGHT...S winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.WED...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.WED NIGHT...S winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.THU...SW winds 10 kt. Seas 2 ft. A slight chance of showers and
tstms.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$