323
FZUS52 KCHS 161518
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1118 AM EDT Mon Jun 16 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

AMZ300-170415-
1118 AM EDT Mon Jun 16 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Atlantic high pressure will continue to build across the
Southeast through the week. A cold front could move through
Friday.

$$

AMZ330-170415-
Charleston Harbor-
1118 AM EDT Mon Jun 16 2025

.THIS AFTERNOON...SW winds 10 to 15 kt with gusts to 20 kt. A
slight chance of showers and tstms.
.TONIGHT...SW winds 10 to 15 kt. A chance of showers and tstms in
the evening.
.TUE...SW winds 10 to 15 kt. A slight chance of showers and tstms
in the afternoon.
.TUE NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. A slight
chance of showers and tstms in the evening.
.WED...SW winds 10 to 15 kt. A slight chance of showers and tstms
in the afternoon.
.WED NIGHT...SW winds 10 to 15 kt. A slight chance of showers and
tstms in the evening.
.THU...SW winds 10 to 15 kt. A slight chance of showers and
tstms.
.THU NIGHT...SW winds 10 to 15 kt. A slight chance of showers and
tstms.
.FRI...SW winds 5 to 10 kt. A chance of showers and tstms.
.FRI NIGHT...SW 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 81 degrees.

$$

AMZ350-170415-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1118 AM EDT Mon Jun 16 2025

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S
3 ft at 4 seconds and SE 3 ft at 8 seconds.
.TONIGHT...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. A
slight chance of showers and tstms.
.TUE...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds. A
slight chance of showers and tstms.
.TUE NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: S
4 ft at 5 seconds and SE 2 ft at 8 seconds. A slight chance of
showers and tstms.
.WED...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 4 ft at 7 seconds. A slight chance of showers and
tstms in the morning.
.WED NIGHT...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 3 ft at 5 seconds and SE 1 foot at 8 seconds.
.THU...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.THU NIGHT...SW winds 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.FRI...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-170415-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1118 AM EDT Mon Jun 16 2025

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail:
SE 3 ft at 8 seconds. A slight chance of showers and tstms late.
.TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 8 seconds.
A slight chance of showers and tstms.
.TUE...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at
5 seconds and SE 2 ft at 8 seconds. A slight chance of showers
and tstms.
.TUE NIGHT...S winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. A
slight chance of showers and tstms.
.WED...SW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to
3 ft in the afternoon. Wave Detail: SE 3 ft at 7 seconds. A
slight chance of showers and tstms in the morning.
.WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft.
Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. A
slight chance of showers and tstms after midnight.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.THU NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers
and tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-170415-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1118 AM EDT Mon Jun 16 2025

.THIS AFTERNOON...SW winds 5 to 10 kt, becoming S 10 to 15 kt
late. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. A slight
chance of showers and tstms late.
.TONIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft at
5 seconds and SE 3 ft at 8 seconds. A slight chance of showers
and tstms.
.TUE...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 5 seconds and SE 3 ft at 8 seconds. A slight chance of showers
and tstms in the afternoon.
.TUE NIGHT...S winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds
and SE 2 ft at 8 seconds. A slight chance of showers and tstms.
.WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 5 seconds and SE 2 ft at 8 seconds. A slight chance of showers
and tstms in the afternoon.
.WED NIGHT...S winds 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft
at 4 seconds and SE 3 ft at 8 seconds. A slight chance of showers
and tstms in the evening.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.THU NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers with a slight chance of tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-170415-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1118 AM EDT Mon Jun 16 2025

.THIS AFTERNOON...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail:
SE 3 ft at 8 seconds.
.TONIGHT...S winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 8 seconds. A
slight chance of showers and tstms.
.TUE...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 8 seconds. A
slight chance of showers and tstms.
.TUE NIGHT...S winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 8 seconds. A
slight chance of showers and tstms.
.WED...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and SE 3 ft at 8 seconds. A slight chance of showers
and tstms in the morning.
.WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft.
Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 8 seconds. A
slight chance of showers and tstms after midnight.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.THU NIGHT...S winds 10 to 15 kt. Seas 3 ft. A chance of showers
with a slight chance of tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.FRI NIGHT...S winds 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$