109
FZUS52 KCHS 032158
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
558 PM EDT Sun Aug 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

AMZ300-041015-
558 PM EDT Sun Aug 3 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A stationary front will linger in the vicinity of the area
through at least the middle of the week.

$$

AMZ330-041015-
Charleston Harbor-
558 PM EDT Sun Aug 3 2025

.TONIGHT...NE winds 10 to 15 kt. A chance of tstms. A chance of
showers.
.MON...NE winds 10 to 15 kt. Showers likely with a chance of
tstms.
.MON NIGHT...E winds 5 to 10 kt. A chance of showers and tstms.
.TUE...NE winds 5 kt, becoming E in the afternoon. Showers
likely. A chance of tstms in the morning, then tstms likely in
the afternoon.
.TUE NIGHT...E winds 5 to 10 kt. Showers likely with a chance of
tstms in the evening, then a chance of showers with a slight
chance of tstms after midnight.
.WED...NE winds 5 to 10 kt. A chance of showers and tstms in the
morning, then showers and tstms likely in the afternoon.
.WED NIGHT...NE winds 5 to 10 kt. Showers likely. Tstms likely,
mainly in the evening.
.THU...NE winds 5 to 10 kt. Showers and tstms likely.
.THU NIGHT...NE winds 5 to 10 kt. Showers likely with a chance of
tstms.
.FRI...NE winds 5 to 10 kt. Showers likely with a chance of
tstms.
.FRI NIGHT...NE winds 5 to 10 kt. Showers likely with a chance of
tstms.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 86 degrees.

$$

AMZ350-041015-
Waters from South Santee River to Edisto Beach SC out 20 NM-
558 PM EDT Sun Aug 3 2025

.TONIGHT...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E
5 ft at 6 seconds. A chance of tstms. A chance of showers until
early morning, then showers likely late.
.MON...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 8 seconds. A chance of tstms. Showers likely, mainly in the
morning.
.MON NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 8 seconds and E
3 ft at 5 seconds. A chance of tstms. A chance of showers in the
evening, then showers likely after midnight.
.TUE...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 8 seconds and SE 1 foot at 8 seconds. Showers likely with a
chance of tstms.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 8 seconds and SE 2 ft at 8 seconds. Showers likely with a
chance of tstms.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 8 seconds and SE 2 ft at 8 seconds. Showers likely with a
chance of tstms.
.WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.THU...NE winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.THU NIGHT...NE winds 10 kt. Seas 2 to 3 ft. Showers likely with
a chance of tstms.
.FRI...NE winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.FRI NIGHT...NE winds 10 kt. Seas 2 to 3 ft. Showers likely with
a chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-041015-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
558 PM EDT Sun Aug 3 2025

.TONIGHT...NE winds 15 to 20 kt, becoming E 10 to 15 kt. Seas 3
to 4 ft. Wave Detail: E 4 ft at 5 seconds. A chance of showers
and tstms this evening, then showers and tstms likely after
midnight.
.MON...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 8 seconds. A chance of tstms. Showers likely.
.MON NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 9 seconds. Showers likely with a chance of tstms.
.TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds and SE 2 ft at 8 seconds. Showers likely with a chance
of tstms.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 8 seconds and SE 2 ft at 8 seconds. Showers likely with a
chance of tstms.
.WED...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 8 seconds and SE 2 ft at 8 seconds. Showers likely. A chance
of tstms in the morning, then tstms likely in the afternoon.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely.
Tstms likely, mainly in the evening.
.THU...NE winds 5 to 10 kt. Seas 2 ft. Showers likely with a
chance of tstms.
.THU NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.
.FRI...NE winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-041015-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
558 PM EDT Sun Aug 3 2025

.TONIGHT...NE 15 to 20 kt, becoming E 10 to 15 kt with gusts to
20 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and E 3
ft at 8 seconds. Showers and tstms likely until early morning,
then a chance of showers and tstms late.
.MON...E winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds. Showers likely with a chance of tstms in the morning,
then showers and tstms likely in the afternoon.
.MON NIGHT...E winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft
at 9 seconds. Showers likely with a chance of tstms.
.TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
8 seconds. Showers likely. A chance of tstms in the morning, then
tstms likely in the afternoon.
.TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 8 seconds and SE 1 foot at 8 seconds. Showers likely.
Tstms likely, mainly in the evening.
.WED...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
8 seconds and SE 1 foot at 8 seconds. Showers likely. A chance of
tstms in the morning, then tstms likely in the afternoon.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 ft. Showers likely. Tstms
likely, mainly in the evening.
.THU...NE winds 5 to 10 kt. Seas 2 ft. Showers and tstms likely.
.THU NIGHT...NE winds 5 to 10 kt. Seas 2 ft. Showers likely with
a chance of tstms.
.FRI...NE winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.
.FRI NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-041015-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
558 PM EDT Sun Aug 3 2025

.TONIGHT...NE winds 15 kt, becoming E 10 to 15 kt. Seas 4 to 5
ft. Wave Detail: NE 4 ft at 8 seconds and SE 1 foot at 8 seconds.
Showers and tstms likely until early morning, then showers likely
with a chance of tstms late.
.MON...E winds 5 to 10 kt. Seas 4 ft. Wave Detail: NE 4 ft at
9 seconds and SE 1 foot at 8 seconds. Showers with tstms likely
in the morning, then showers likely with a chance of tstms in the
afternoon.
.MON NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NE
4 ft at 9 seconds and SE 1 foot at 8 seconds. A chance of tstms.
Showers.
.TUE...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft
at 8 seconds and SE 2 ft at 8 seconds. A chance of tstms.
Showers.
.TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: NE
3 ft at 8 seconds and SE 2 ft at 8 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.WED...NE winds 5 kt. Seas 3 ft. Wave Detail: NE 3 ft at
8 seconds and SE 2 ft at 8 seconds. Showers likely with a chance
of tstms.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
tstms. Showers.
.THU...NE winds 5 to 10 kt. Seas 2 to 3 ft. Showers with a chance
of tstms.
.THU NIGHT...NE winds 5 to 10 kt. Seas 3 ft. Showers with a
chance of tstms.
.FRI...NE winds 10 kt. Seas 3 to 4 ft. Showers with a chance of
tstms.
.FRI NIGHT...E winds 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.

Winds and seas higher in and near tstms.

$$