133
FZUS52 KCHS 132311
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
711 PM EDT Sun Jul 13 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

AMZ300-141215-
711 PM EDT Sun Jul 13 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Weak high pressure will continue to build across the region
through the week.

$$

AMZ330-141215-
Charleston Harbor-
711 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...SE winds 5 to 10 kt this evening, becoming
light and variable. A chance of showers and tstms early this
evening.
.MON...E winds 5 kt, increasing to 5 to 10 kt in the afternoon. A
slight chance of showers and tstms in the morning, then a chance
of showers and tstms in the afternoon.
.MON NIGHT...SE winds 5 to 10 kt. A slight chance of showers and
tstms in the evening.
.TUE...SE winds 5 to 10 kt. A chance of showers. A slight chance
of tstms in the morning, then a chance of tstms in the afternoon.
.TUE NIGHT...S winds 5 to 10 kt. A chance of showers and tstms.
.WED...S winds 10 to 15 kt. Showers likely with a chance of
tstms.
.WED NIGHT...S winds 5 to 10 kt. A slight chance of showers and
tstms.
.THU...S winds 10 to 15 kt. A chance of showers and tstms.
.THU NIGHT...S winds 5 to 10 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.

$$

AMZ350-141215-
Waters from South Santee River to Edisto Beach SC out 20 NM-
711 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail:
SE 2 ft at 7 seconds and S 1 foot at 4 seconds. A slight chance of
showers and tstms early this evening.
.MON...E winds 5 kt, increasing to 5 to 10 kt in the afternoon.
Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds. A slight chance of
showers and tstms.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 7 seconds. A slight chance of showers and tstms.
.TUE...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
7 seconds. A chance of showers and tstms.
.TUE NIGHT...S winds 10 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. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. A 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 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-141215-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
711 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...S winds 5 to 10 kt, becoming N late. Seas 2
ft. Wave Detail: SE 2 ft at 7 seconds. A slight chance of showers
and tstms this evening.
.MON...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
7 seconds. A slight chance of showers and tstms.
.MON NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 8 seconds. A chance of showers and tstms, mainly in the
evening.
.TUE...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds. A chance of showers and tstms.
.TUE NIGHT...SE winds 10 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 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. A chance of showers
and tstms.
.THU...S winds 10 kt. Seas 3 ft. A chance of showers and tstms.
.THU NIGHT...S winds 10 kt. Seas 3 ft. A slight chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-141215-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
711 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...S winds 5 to 10 kt, becoming W. Seas 2 ft.
Wave Detail: SE 2 ft at 8 seconds. A slight chance of showers and
tstms until early morning.
.MON...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds. A slight chance of showers and tstms.
.MON NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 6 seconds. A chance of showers and tstms, mainly in the
evening.
.TUE...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 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 chance of showers. A chance of tstms, mainly in
the evening.
.WED...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. 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.

Winds and seas higher in and near tstms.

$$

AMZ374-141215-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
711 PM EDT Sun Jul 13 2025

.REST OF TONIGHT...S winds 5 to 10 kt, becoming NW late. Seas 2
ft. Wave Detail: SE 2 ft at 8 seconds and SW 1 foot at 3 seconds.
A slight chance of showers and tstms.
.MON...NE winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and SW 1 foot at 3 seconds. A slight chance of showers
and tstms.
.MON NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 7 seconds and SW 1 foot at 4 seconds. A slight chance of
showers and tstms in the evening, then a chance of showers and
tstms after midnight.
.TUE...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
6 seconds. A chance of showers and tstms.
.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 8 seconds,
becoming SE 3 ft at 6 seconds. A chance of showers and tstms.
.WED...S winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. A chance of showers
and tstms.
.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 chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$