053
FZUS52 KCHS 312319
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
719 PM EDT Sun Aug 31 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

AMZ300-011215-
719 PM EDT Sun Aug 31 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will extend across the area through mid week while
a stationary front lingers just off the coast. A cold front could
pass through the region by the end of the week.

$$

AMZ330-011215-
Charleston Harbor-
719 PM EDT Sun Aug 31 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT MONDAY...

.TONIGHT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt after
midnight. Waves 1 to 2 ft.
.MON...NE winds 10 to 15 kt with gusts to 20 kt.
.MON NIGHT...NE winds 10 to 15 kt.
.TUE...NE winds 10 kt.
.TUE NIGHT...NE winds 5 to 10 kt.
.WED...NE winds 5 to 10 kt. A slight chance of showers and tstms
in the afternoon.
.WED NIGHT...E winds 5 to 10 kt. A slight chance of showers and
tstms in the evening.
.THU...E winds 5 to 10 kt. A slight chance of showers and tstms.
.THU NIGHT...S winds 5 to 10 kt.
.FRI...SW winds 5 to 10 kt.
.FRI NIGHT...S winds 5 to 10 kt.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 82 degrees.

$$

AMZ350-011215-
Waters from South Santee River to Edisto Beach SC out 20 NM-
719 PM EDT Sun Aug 31 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING...

.TONIGHT...NE winds 20 to 25 kt with gusts to 30 kt. Seas 6 to
7 ft. Wave Detail: E 7 ft at 7 seconds. A slight chance of
showers and tstms late this evening.
.MON...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 5 to 7 ft, subsiding to 5 to 6 ft in the
afternoon. Wave Detail: E 7 ft at 8 seconds, becoming E 6 ft at
8 seconds.
.MON NIGHT...NE winds 15 to 20 kt. Seas 5 to 6 ft, subsiding to
4 to 5 ft after midnight. Wave Detail: E 6 ft at 8 seconds,
becoming E 5 ft at 8 seconds. A slight chance of showers and
tstms.
.TUE...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 8 seconds. A slight chance of tstms in the morning. A slight
chance of showers.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 7 seconds. A slight chance of showers and tstms after
midnight.
.WED...NE winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds. A slight chance of showers and tstms.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers and tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...SW winds 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ352-011215-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
719 PM EDT Sun Aug 31 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING...

.TONIGHT...NE winds 20 to 25 kt with gusts to 30 kt. Seas 5 to
7 ft. Wave Detail: E 6 ft at 7 seconds. A slight chance of
showers and tstms.
.MON...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft.
Wave Detail: E 6 ft at 7 seconds.
.MON NIGHT...NE winds 15 kt with gusts to 20 kt. Seas 4 to 6 ft,
subsiding to 4 to 5 ft after midnight. Wave Detail: E 5 ft at
8 seconds. A slight chance of showers and tstms.
.TUE...NE winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 5 ft.
Wave Detail: E 5 ft at 8 seconds. A slight chance of showers and
tstms.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 7 seconds. A slight chance of showers and tstms.
.WED...NE winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds. A slight chance of showers and tstms.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers and tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ354-011215-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
719 PM EDT Sun Aug 31 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY EVENING...

.TONIGHT...NE winds 20 to 25 kt with gusts to 30 kt. Seas 5 to
7 ft, building to 6 to 7 ft after midnight. Wave Detail: E 6 ft
at 6 seconds, becoming E 6 ft at 7 seconds. A chance of showers
and tstms early this evening, then a slight chance of showers and
tstms late this evening.
.MON...NE winds 20 to 25 kt. Seas 6 to 7 ft, subsiding to 5 to
6 ft in the afternoon. Wave Detail: E 6 ft at 7 seconds, becoming
NE 6 ft at 7 seconds. A slight chance of showers and tstms in the
morning.
.MON NIGHT...NE winds 15 to 20 kt. Seas 5 to 6 ft, subsiding to
4 to 5 ft after midnight. Wave Detail: E 6 ft at 8 seconds,
becoming E 5 ft at 8 seconds. A slight chance of showers and
tstms.
.TUE...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 8 seconds. A slight chance of showers and tstms.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. Wave Detail: E 4 ft at 8 seconds,
becoming E 4 ft at 7 seconds. A slight chance of showers and
tstms.
.WED...NE winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at
8 seconds. A slight chance of showers and tstms.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...S winds 10 kt. Seas 2 ft.

Winds and seas higher in and near tstms.

$$

AMZ374-011215-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
719 PM EDT Sun Aug 31 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE MONDAY NIGHT...

.TONIGHT...NE winds 20 to 25 kt. Seas 6 to 8 ft, building to 7 to
8 ft after midnight. Wave Detail: NE 8 ft at 7 seconds. A chance
of showers and tstms.
.MON...NE winds 20 to 25 kt with gusts to 30 kt. Seas 6 to 7 ft.
Wave Detail: NE 7 ft at 7 seconds. A chance of showers and tstms,
mainly in the morning.
.MON NIGHT...NE winds 15 to 20 kt with gusts to 25 kt. Seas 6 to
7 ft, subsiding to 5 to 6 ft after midnight. Wave Detail: NE 7 ft
at 8 seconds, becoming NE 6 ft at 8 seconds. A chance of showers.
A slight chance of tstms in the evening, then a chance of tstms
after midnight.
.TUE...NE winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: NE 6 ft
at 8 seconds. A chance of showers and tstms.
.TUE NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: E
5 ft at 8 seconds. A chance of showers and tstms.
.WED...NE winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at
8 seconds. A chance of showers. A chance of tstms, mainly in the
morning.
.WED NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. A chance of
showers. A slight chance of tstms in the evening, then a chance
of tstms after midnight.
.THU...NE winds 5 to 10 kt. Seas 3 ft. A chance of showers and
tstms.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance
of showers and tstms.
.FRI...NW 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 slight chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$