567
FZUS52 KCHS 032259
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
659 PM EDT Wed Sep 3 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

AMZ300-041115-
659 PM EDT Wed Sep 3 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will extend across the area through late week. A
cold front will move through from the northwest late Sunday,
stalling just offshore through the middle of next week.

$$

AMZ330-041115-
Charleston Harbor-
659 PM EDT Wed Sep 3 2025

.TONIGHT...SE winds 5 kt until early morning, becoming light and
variable.
.THU...NE winds 5 kt, becoming SE in the afternoon.
.THU NIGHT...S winds 5 to 10 kt.
.FRI...N winds 5 kt, becoming SE in the afternoon.
.FRI NIGHT...E winds 5 to 10 kt.
.SAT...N winds 5 kt, becoming E in the afternoon.
.SAT NIGHT...S winds 5 to 10 kt, becoming SW after midnight.
.SUN...NE winds 5 to 10 kt. A chance of showers and tstms.
.SUN NIGHT...NE winds 5 to 10 kt. A chance of showers and tstms.
.MON...NE winds 10 to 15 kt. A chance of showers and tstms.
.MON NIGHT...NE 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 79 degrees.

$$

AMZ350-041115-
Waters from South Santee River to Edisto Beach SC out 20 NM-
659 PM EDT Wed Sep 3 2025

.TONIGHT...E winds 5 to 10 kt, diminishing to 5 kt late. Seas
2 to 3 ft. Wave Detail: E 3 ft at 8 seconds.
.THU...E winds 5 kt, becoming SE in the afternoon. Seas 2 to
3 ft. Wave Detail: E 3 ft at 8 seconds.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 8 seconds.
.FRI...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
8 seconds.
.FRI NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 8 seconds.
.SAT...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
8 seconds.
.SAT NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Seas 2 ft.
.SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.MON...NE winds 15 to 20 kt. Seas 4 to 5 ft. A chance of showers
and tstms.
.MON NIGHT...NE winds 20 kt. Seas 4 to 6 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-041115-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
659 PM EDT Wed Sep 3 2025

.TONIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds.
.THU...E winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 8 seconds.
.FRI...N winds 5 kt, becoming E in the afternoon. Seas 2 ft. Wave
Detail: E 2 ft at 8 seconds.
.FRI NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 8 seconds.
.SAT...NE winds 5 kt, becoming E in the afternoon. Seas 2 ft.
Wave Detail: E 2 ft at 8 seconds.
.SAT NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Seas 2 ft.
.SUN...NE winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.SUN NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.MON...NE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 5 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-041115-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
659 PM EDT Wed Sep 3 2025

.TONIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds.
.FRI...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
8 seconds.
.FRI NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 8 seconds.
.SAT...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
8 seconds.
.SAT NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 ft.
.SUN...N winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.SUN NIGHT...E winds 10 kt. Seas 2 ft. A chance of showers and
tstms.
.MON...NE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.MON NIGHT...NE winds 20 kt. Seas 4 to 5 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-041115-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
659 PM EDT Wed Sep 3 2025

.TONIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NE
4 ft at 8 seconds.
.THU...E winds 5 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at
8 seconds and SE 1 foot at 8 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds.
.FRI...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 8 seconds.
.FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds. A slight chance of showers after midnight.
.SAT...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
8 seconds. A slight chance of showers.
.SAT NIGHT...E winds 5 to 10 kt, becoming S after midnight. Seas
2 ft. A slight chance of showers and tstms after midnight.
.SUN...N winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SUN NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.MON...NE winds 15 to 20 kt. Seas 3 to 4 ft. Showers likely with
a chance of tstms.
.MON NIGHT...NE winds 15 to 20 kt. Seas 4 to 5 ft. Showers likely
with a chance of tstms.

Winds and seas higher in and near tstms.

$$