552
FZUS52 KCHS 092327
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
727 PM EDT Sat Aug 9 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

AMZ300-101215-
727 PM EDT Sat Aug 9 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A stationary front will linger south of our area through early
next week, while high pressure remains centered well to our
north.

$$

AMZ330-101215-
Charleston Harbor-
727 PM EDT Sat Aug 9 2025

.TONIGHT...E winds 10 to 15 kt with gusts to 20 kt, diminishing
to 5 to 10 kt after midnight. Showers likely. A chance of tstms
until early morning, then tstms likely late.
.SUN...E winds 5 to 10 kt. Showers with tstms likely.
.SUN NIGHT...SE winds 5 to 10 kt. Tstms likely. Showers.
.MON...SE winds 5 to 10 kt. Showers with tstms likely.
.MON NIGHT...SE winds 5 to 10 kt. Showers and tstms likely,
mainly in the evening.
.TUE...SE winds 5 to 10 kt. Showers likely with a chance of
tstms.
.TUE NIGHT...SW winds 5 kt. A chance of showers and tstms.
.WED...SW winds 5 to 10 kt. A chance of showers and tstms.
.WED NIGHT...SW winds 5 to 10 kt. A chance of showers and tstms.
.THU...SW winds 5 to 10 kt. A chance of showers and tstms.
.THU NIGHT...SW winds 5 to 10 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 83 degrees.

$$

AMZ350-101215-
Waters from South Santee River to Edisto Beach SC out 20 NM-
727 PM EDT Sat Aug 9 2025

.TONIGHT...E winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: E 4 ft at 6 seconds. A chance of showers and
tstms early this evening, then showers with tstms likely late
this evening. Vsby 1 to 3 NM late.
.SUN...SE winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds and SE 2 ft at 5 seconds. Showers with tstms likely.
Vsby 1 to 3 NM.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE
2 ft at 5 seconds and E 2 ft at 8 seconds. Showers with tstms
likely.
.MON...SE winds 10 kt. Seas 3 ft. Wave Detail: E 2 ft at
7 seconds. Showers with tstms likely.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds. Showers likely with a chance of tstms.
.TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 7 seconds. Showers likely with a chance of tstms.
.TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.WED...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A 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 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-101215-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
727 PM EDT Sat Aug 9 2025

.TONIGHT...E winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft.
Wave Detail: E 3 ft at 6 seconds. Showers likely with a chance of
tstms early this evening, then showers with tstms likely late
this evening.
.SUN...E winds 10 kt. Seas 3 ft. Wave Detail: SE 2 ft at
5 seconds and E 2 ft at 8 seconds. Showers with tstms likely.
Vsby 1 to 3 NM.
.SUN NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 5 seconds and E 2 ft at 8 seconds. Showers with tstms
likely.
.MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 5 seconds and E 2 ft at 8 seconds. Showers with tstms likely.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 6 seconds. Showers likely with a chance of tstms.
.TUE...SE winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at
6 seconds. Showers likely. Tstms likely, mainly in the morning.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.
.WED...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A 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 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-101215-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
727 PM EDT Sat Aug 9 2025

.TONIGHT...E winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft.
Wave Detail: E 3 ft at 5 seconds and E 3 ft at 8 seconds. Tstms
likely. Showers.
.SUN...E winds 10 kt. Seas 3 ft. Wave Detail: E 2 ft at
7 seconds. Tstms likely. Showers. Vsby 1 to 3 NM.
.SUN NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SE 2 ft at 5 seconds and E 2 ft at 8 seconds. Showers with tstms
likely.
.MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 5 seconds and E 2 ft at 8 seconds. Showers with a chance of
tstms.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 7 seconds. A chance of tstms. A chance of showers in the
evening, then showers likely after midnight.
.TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
7 seconds. Showers likely with a chance of tstms.
.TUE NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
2 ft. A chance of showers and tstms.
.WED...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A 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 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-101215-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
727 PM EDT Sat Aug 9 2025

.TONIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
3 ft at 5 seconds and E 3 ft at 8 seconds. Showers and tstms.
Vsby 1 to 3 NM late.
.SUN...SE winds 10 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at
6 seconds and NE 3 ft at 8 seconds. Showers and tstms in the
morning, then showers likely with a chance of tstms in the
afternoon. Vsby 1 NM or less, increasing to 1 to 3 NM in the
afternoon.
.SUN NIGHT...SE winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds and SE 2 ft at 5 seconds. Showers with tstms likely.
.MON...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds and SE 2 ft at 5 seconds. Showers. Tstms likely, mainly
in the morning.
.MON NIGHT...SE winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft
at 7 seconds. A chance of tstms. A chance of showers in the
evening, then showers likely after midnight.
.TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
7 seconds. Showers likely with a chance of tstms.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms in the evening, then a chance of showers and
tstms after midnight.
.WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A 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 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$