646
FZUS52 KCHS 151752
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
152 PM EDT Sun Jun 15 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

AMZ300-160700-
152 PM EDT Sun Jun 15 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.

$$

AMZ330-160700-
Charleston Harbor-
152 PM EDT Sun Jun 15 2025

.TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt, diminishing
to 5 to 10 kt after midnight. A slight chance of showers and
tstms this evening.
.MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
to 20 kt in the afternoon. A chance of showers. A slight chance
of tstms in the morning, then a chance of tstms in the afternoon.
.MON NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. A chance
of showers and tstms.
.TUE...SW winds 10 to 15 kt. Gusts to 25 kt in the afternoon. A
chance of showers and tstms.
.TUE NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. A slight
chance of showers and tstms.
.WED...SW winds 10 to 15 kt. A slight chance of showers and
tstms.
.WED NIGHT...SW winds 10 to 15 kt with gusts to 20 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 chance of showers and tstms.
.FRI...SW winds 10 to 15 kt. A chance of showers and tstms.
.FRI NIGHT...SW winds 5 to 10 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 81 degrees.

$$

AMZ350-160700-
Waters from South Santee River to Edisto Beach SC out 20 NM-
152 PM EDT Sun Jun 15 2025

.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
3 ft at 5 seconds and SE 3 ft at 9 seconds.
.MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 7 seconds. A chance of showers. A slight chance of tstms in
the morning, then a chance of tstms in the afternoon.
.MON NIGHT...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 8 seconds. A
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 7 seconds. A chance of showers and tstms.
.TUE NIGHT...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 3 ft at 7 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: SE 3 ft at 7 seconds. A slight chance of showers and
tstms.
.WED NIGHT...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
.THU...SW winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of
showers and tstms.
.THU NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.FRI NIGHT...SW winds 10 kt. Seas 3 ft. A chance of showers and
tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-160700-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
152 PM EDT Sun Jun 15 2025

.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S
4 ft at 8 seconds. A slight chance of showers and tstms this
evening.
.MON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds. A chance of showers. A slight chance of tstms in
the morning, then a chance of tstms in the afternoon.
.MON NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 8 seconds.
A chance of showers and tstms.
.TUE...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft
at 5 seconds and SE 2 ft at 8 seconds. A chance of showers with a
slight chance of 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 3 ft at 8 seconds. A
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 1 foot at 8 seconds. A slight chance of
showers and tstms.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 ft.
.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 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-160700-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
152 PM EDT Sun Jun 15 2025

.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
3 ft at 9 seconds. A slight chance of showers and tstms this
evening.
.MON...SW winds 10 kt, becoming S in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 8 seconds. A chance of showers. A
slight chance of tstms in the morning, then a chance of tstms in
the afternoon.
.MON NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft
at 4 seconds and SE 3 ft at 8 seconds. A 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 chance of showers. A
slight chance of tstms in the morning, then a chance of tstms in
the afternoon.
.TUE NIGHT...S winds 10 to 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 chance of showers and tstms, mainly in the evening.
.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.
.WED NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 2 to
3 ft. 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...SW winds 10 to 15 kt. Seas 2 to 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 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-160700-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
152 PM EDT Sun Jun 15 2025

.TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds. A slight chance of showers and tstms after
midnight.
.MON...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds. A chance of showers with a slight chance of tstms.
.MON 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
chance of showers and tstms.
.TUE...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 chance of showers with a
slight chance of 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.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance
of showers and tstms after midnight.
.THU...SW winds 10 to 15 kt. Seas 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 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.FRI NIGHT...SW winds 10 kt. Seas 3 to 4 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$