350
FZUS52 KCHS 060559
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
159 AM EDT Mon Oct 6 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

AMZ300-061815-
159 AM EDT Mon Oct 6 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Strong high pressure will extend across the region through
mid-week, with a cold front then progged to dive across the
southeastern CONUS heading into the weekend.

$$

AMZ330-061815-
Charleston Harbor-
159 AM EDT Mon Oct 6 2025

.REST OF TONIGHT...E winds 10 to 15 kt. A slight chance of
showers and tstms, then a chance of showers and tstms late.
.MON...E winds 10 to 15 kt, increasing to 10 to 15 kt with gusts
to 20 kt in the afternoon. A slight chance of showers and tstms in
the morning.
.MON NIGHT...E winds 10 to 15 kt with gusts to 20 kt, diminishing
to 5 to 10 kt after midnight.
.TUE...E winds 5 to 10 kt.
.TUE NIGHT...E winds 5 to 10 kt.
.WED...E winds 5 kt.
.WED NIGHT...E winds 5 kt, becoming NE 10 to 15 kt with gusts to
20 kt after midnight. A chance of showers. A slight chance of
tstms after midnight.
.THU...NE winds 20 to 25 kt. Waves 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...NE winds 20 to 25 kt. Waves 2 to 3 ft. A chance of
showers with a slight chance of tstms.
.FRI...NE winds 20 to 25 kt. Waves 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.FRI NIGHT...NE winds 20 to 25 kt. Waves 2 to 3 ft. A slight
chance of showers.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 75 degrees.

$$

AMZ350-061815-
Waters from South Santee River to Edisto Beach SC out 20 NM-
159 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. Wave
Detail: E 6 ft at 8 seconds and E 2 ft at 13 seconds. A chance of
showers and tstms.
.MON...E winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 6 ft.
Wave Detail: E 5 ft at 8 seconds and E 2 ft at 13 seconds. A
slight chance of showers and tstms in the morning.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft, subsiding to
4 to 6 ft after midnight. Wave Detail: E 6 ft at 8 seconds and E
2 ft at 13 seconds, becoming E 5 ft at 8 seconds and E 1 foot at
13 seconds.
.TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: SE 5 ft
at 8 seconds and E 1 foot at 12 seconds.
.TUE NIGHT...SE winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SE
5 ft at 8 seconds.
.WED...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 8 seconds.
.WED NIGHT...E winds 5 to 10 kt, becoming NE 15 to 20 kt with
gusts to 25 kt after midnight. Seas 3 to 4 ft, building to 4 to
5 ft after midnight. A slight chance of showers in the evening,
then a chance of showers with a slight chance of tstms after
midnight.
.THU...NE winds 25 to 30 kt. Seas 5 to 7 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...NE winds 30 to 35 kt. Seas 7 to 9 ft. A chance of
showers and tstms.
.FRI...NE winds 25 to 35 kt. Seas 7 to 9 ft. A chance of showers
and tstms.
.FRI NIGHT...NE winds 25 to 30 kt. Seas 7 to 9 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ352-061815-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
159 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.REST OF TONIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. Wave
Detail: E 6 ft at 8 seconds and E 1 foot at 14 seconds. A chance
of showers and tstms.
.MON...E winds 10 to 15 kt with gusts to 20 kt. Seas 4 to 6 ft,
subsiding to 4 to 6 ft in the afternoon. Wave Detail: E 5 ft at 8
seconds and E 1 foot at 14 seconds, becoming E 5 ft at 8 seconds
and E 1 foot at 13 seconds. A chance of showers with a slight
chance of tstms in the morning.
.MON NIGHT...E winds 10 to 15 kt with gusts to 20 kt. Seas 5 to
6 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: E 6 ft
at 8 seconds and E 1 foot at 14 seconds, becoming E 5 ft at
8 seconds and E 1 foot at 14 seconds.
.TUE...E winds 10 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at
8 seconds.
.TUE NIGHT...E winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: SE
5 ft at 8 seconds.
.WED...E winds 5 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at
8 seconds.
.WED NIGHT...E winds 5 kt, becoming NE 10 to 15 kt with gusts to
20 kt after midnight. Seas 3 to 4 ft. A slight chance of showers
in the evening, then a chance of showers with a slight chance of
tstms after midnight.
.THU...NE winds 25 to 30 kt. Seas 5 to 7 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...NE winds 30 kt. Seas 6 to 8 ft. A chance of showers
and tstms.
.FRI...NE winds 25 to 30 kt. Seas 7 to 9 ft. A chance of showers
with a slight chance of tstms.
.FRI NIGHT...NE winds 25 to 30 kt. Seas 7 to 9 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ354-061815-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
159 AM EDT Mon Oct 6 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING...

.REST OF TONIGHT...E winds 10 kt. Seas 5 to 6 ft. Wave Detail: E
6 ft at 8 seconds and E 2 ft at 12 seconds. A slight chance of
showers and tstms.
.MON...E winds 10 to 15 kt. Seas 4 to 6 ft. Wave Detail: E 5 ft
at 8 seconds and E 2 ft at 14 seconds. A slight chance of tstms. A
chance of showers, mainly in the morning.
.MON NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: E
5 ft at 8 seconds and E 2 ft at 13 seconds.
.TUE...E winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 8 seconds and E 1 foot at 14 seconds. A slight chance of
showers and tstms.
.TUE NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 4 to 5 ft. Wave Detail: E 5 ft at 8 seconds and E
1 foot at 12 seconds.
.WED...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 8 seconds.
.WED NIGHT...E winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts to 20 kt after midnight. Seas 3 to 4 ft. A slight chance of
showers after midnight.
.THU...NE winds 25 to 30 kt. Seas 4 to 6 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...NE winds 30 kt. Seas 6 to 8 ft. A chance of showers
and tstms.
.FRI...NE winds 30 kt. Seas 7 to 9 ft. A chance of showers with a
slight chance of tstms.
.FRI NIGHT...NE winds 25 to 35 kt. Seas 7 to 9 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ374-061815-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
159 AM EDT Mon Oct 6 2025

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

.REST OF TONIGHT...E winds 10 to 15 kt with gusts to 20 kt. Seas
6 to 8 ft. Wave Detail: E 7 ft at 8 seconds and E 3 ft at
13 seconds. A chance of showers with a slight chance of tstms.
.MON...E winds 15 to 20 kt. Seas 6 to 8 ft. Wave Detail: E 7 ft
at 8 seconds and E 3 ft at 13 seconds. A slight chance of
showers.
.MON NIGHT...E winds 15 to 20 kt. Seas 6 to 8 ft, subsiding to
6 to 7 ft after midnight. Wave Detail: E 7 ft at 8 seconds and E
3 ft at 13 seconds, becoming E 7 ft at 8 seconds and E 2 ft at
13 seconds.
.TUE...E winds 10 to 15 kt with gusts to 20 kt. Seas 5 to 7 ft,
subsiding to 5 to 6 ft in the afternoon. Wave Detail: E 6 ft at
8 seconds and E 2 ft at 13 seconds, becoming E 6 ft at 8 seconds
and E 2 ft at 12 seconds. A slight chance of showers and tstms.
.TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: E
6 ft at 8 seconds and E 1 foot at 12 seconds.
.WED...E winds 5 to 10 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft at
8 seconds.
.WED NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance
of showers after midnight.
.THU...NE winds 25 to 30 kt. Seas 6 to 8 ft. A chance of showers
with a slight chance of tstms.
.THU NIGHT...NE winds 25 to 30 kt. Seas 7 to 9 ft. Showers likely
with a chance of tstms.
.FRI...NE winds 30 kt. Seas 9 to 10 ft. A chance of showers with
a slight chance of tstms.
.FRI NIGHT...NE winds 25 to 30 kt. Seas 9 to 10 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$