812
FZUS52 KCHS 142243
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
643 PM EDT Mon Jul 14 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

AMZ300-151115-
643 PM EDT Mon Jul 14 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Atlantic high pressure will prevail into the upcoming weekend.

$$

AMZ330-151115-
Charleston Harbor-
643 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...E winds 10 kt, becoming SE late this evening.
.TUE...E winds 5 to 10 kt, becoming SE 10 to 15 kt with gusts to
20 kt in the afternoon. A chance of showers and tstms.
.TUE NIGHT...SE winds 10 to 15 kt. A chance of showers and tstms.
.WED...S winds 10 kt, increasing to 15 kt with gusts to 20 kt in
the afternoon. Showers likely with a chance of tstms.
.WED NIGHT...S winds 10 to 15 kt. A chance of showers and tstms,
mainly in the evening.
.THU...S winds 10 to 15 kt. A chance of showers and tstms.
.THU NIGHT...S winds 10 to 15 kt.
.FRI...SW winds 10 to 15 kt. A chance of showers and tstms.
.FRI NIGHT...SW winds 10 to 15 kt. A slight 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 86 degrees.

$$

AMZ350-151115-
Waters from South Santee River to Edisto Beach SC out 20 NM-
643 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail:
SE 2 ft at 7 seconds.
.TUE...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
5 seconds. A chance of showers and tstms.
.TUE NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 6 seconds. A chance of showers and tstms.
.WED...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at
6 seconds. Showers likely with a chance of tstms.
.WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft.
Wave Detail: S 3 ft at 6 seconds. A slight chance of showers and
tstms in the evening, then a chance of showers and tstms after
midnight.
.THU...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and
tstms.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A slight chance of
showers and tstms.
.FRI...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and
tstms.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A slight chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-151115-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
643 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE
2 ft at 8 seconds. A slight chance of showers and tstms early
this evening.
.TUE...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
6 seconds. A chance of showers. A slight chance of tstms in the
morning, then a chance of tstms in the afternoon.
.TUE NIGHT...SE winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 6 seconds. A slight chance of showers and tstms in the
evening, then a chance of showers and tstms after midnight.
.WED...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at
6 seconds. A chance of showers and tstms.
.WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft.
Wave Detail: SE 3 ft at 6 seconds. A slight chance of showers and
tstms.
.THU...S winds 10 to 15 kt. Seas 3 ft. A chance of showers and
tstms.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.FRI NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-151115-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
643 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E
2 ft at 6 seconds. A slight chance of showers and tstms early
this evening.
.TUE...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
6 seconds. A chance of showers and tstms in the afternoon.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail:
SE 3 ft at 6 seconds. A chance of showers. A chance of tstms,
mainly in the evening.
.WED...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at
6 seconds. A chance of showers. A slight chance of tstms in the
morning, then a chance of tstms in the afternoon.
.WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft.
Wave Detail: SE 3 ft at 6 seconds. A slight chance of showers and
tstms.
.THU...S winds 10 to 15 kt. Seas 3 ft. A chance of showers and
tstms.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.FRI...S winds 10 kt. Seas 2 to 3 ft. A chance of showers and
tstms.
.FRI NIGHT...S winds 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-151115-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
643 PM EDT Mon Jul 14 2025

.REST OF TONIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E
2 ft at 7 seconds. A slight chance of showers and tstms early
this evening.
.TUE...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
6 seconds. A chance of showers and tstms. Vsby 1 to 3 NM.
.TUE NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft, building to
3 to 4 ft after midnight. Wave Detail: SE 3 ft at 6 seconds. A
chance of showers and tstms.
.WED...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 6 seconds. A chance of showers and tstms.
.WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 3 ft at 6 seconds. A slight chance of
tstms. A slight chance of showers in the evening, then a chance
of showers after midnight.
.THU...S winds 10 kt. Seas 3 ft. A chance of showers and tstms.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 ft. A slight chance of
showers and tstms.
.FRI...SW winds 5 to 10 kt. Seas 3 ft. A chance of showers with a
slight chance of tstms.
.FRI NIGHT...S winds 10 kt. Seas 3 ft. A slight chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$