702
FZUS52 KCHS 240703
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
303 AM EDT Tue Jun 24 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

AMZ300-241930-
303 AM EDT Tue Jun 24 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will remain across the Southeast U.S. over the next
couple days, then slowly shift offshore by the end of the week.
Hot and humid conditions are expected to continue with rain
chances increasing mid to late week as surface troughing begins
to form over the region.

$$

AMZ330-241930-
Charleston Harbor-
303 AM EDT Tue Jun 24 2025

.TODAY...W winds 5 to 10 kt, becoming S 10 kt this afternoon.
.TONIGHT...SW winds 5 to 10 kt, diminishing to 5 kt after
midnight.
.WED...SW winds 5 kt, becoming S in the afternoon. A slight
chance of showers and tstms in the afternoon.
.WED NIGHT...S winds 10 kt, becoming SW after midnight. A slight
chance of showers and tstms.
.THU...SW winds 5 kt, becoming S in the afternoon. A slight
chance of showers and tstms.
.THU NIGHT...S winds 5 to 10 kt. A slight chance of showers and
tstms in the evening.
.FRI...S winds 10 to 15 kt. A slight chance of showers and tstms.
.FRI NIGHT...SW winds 10 to 15 kt. A slight chance of showers and
tstms.
.SAT...SW winds 10 to 15 kt. A chance of showers and tstms.
.SAT 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 84 degrees.

$$

AMZ350-241930-
Waters from South Santee River to Edisto Beach SC out 20 NM-
303 AM EDT Tue Jun 24 2025

.TODAY...W winds 5 to 10 kt with gusts to 15 kt early, becoming S
10 kt this afternoon. Seas 2 ft. Wave Detail: SW 2 ft at 4
seconds and SE 2 ft at 8 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW 2 ft
at 3 seconds and SE 2 ft at 8 seconds.
.WED...SW winds 5 to 10 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 in the afternoon.
.WED NIGHT...SW winds 5 to 10 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 in the evening, then a chance of showers and
tstms after midnight.
.THU...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
9 seconds and S 1 foot at 3 seconds. A chance of showers and
tstms, mainly in the morning.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft
at 4 seconds and SE 2 ft at 9 seconds.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight
chance of showers and tstms.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-241930-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
303 AM EDT Tue Jun 24 2025

.TODAY...W winds 5 to 10 kt with gusts to 15 kt early, becoming S
10 kt this afternoon. Seas 2 ft. Wave Detail: SE 2 ft at 8 seconds
and SW 1 foot at 3 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 8 seconds and SW 1 foot at 3 seconds.
.WED...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and SW 1 foot at 3 seconds.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 8 seconds and S 1 foot at 3 seconds. A slight chance of
showers and tstms in the evening, then a chance of showers and
tstms after midnight.
.THU...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
9 seconds and SW 1 foot at 3 seconds. A chance of showers and
tstms, mainly in the morning.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 9 seconds. A slight chance of showers and tstms.
.FRI...S winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-241930-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
303 AM EDT Tue Jun 24 2025

.TODAY...W winds 5 to 10 kt, becoming S 10 kt this afternoon.
Seas 2 ft. Wave Detail: SE 2 ft at 8 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
3 seconds and SE 2 ft at 8 seconds.
.WED...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
8 seconds and S 1 foot at 3 seconds.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 8 seconds and S 1 foot at 3 seconds. A slight chance of
showers and tstms after midnight.
.THU...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
9 seconds and S 1 foot at 3 seconds. A slight chance of showers
and tstms.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 9 seconds. A slight chance of showers and tstms.
.FRI...S winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.FRI NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-241930-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
303 AM EDT Tue Jun 24 2025

.TODAY...W winds 5 to 10 kt, becoming S 10 kt this afternoon.
Seas 2 ft. Wave Detail: SE 2 ft at 8 seconds.
.TONIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 8 seconds and SW 1 foot at 3 seconds.
.WED...SW winds 5 to 10 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 in the morning.
.WED NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 9 seconds and S 1 foot at 3 seconds. A chance of showers and
tstms after midnight.
.THU...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
9 seconds and S 1 foot at 3 seconds. A chance of showers and
tstms, mainly in the morning.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds. A slight chance of showers and tstms.
.FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.FRI NIGHT...S winds 10 kt. Seas 3 ft. A chance of showers and
tstms.
.SAT...SW winds 5 to 10 kt. Seas 3 ft. A chance of showers and
tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$