Coastal Waters Forecast
Issued by NWS Charleston, SC

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FZUS52 KCHS 051411
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
1010 AM EDT Sun Oct 5 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

AMZ300-060300-
1010 AM EDT Sun Oct 5 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Strong high pressure will extend across the region through the
weekend and into early next week. A strong cold front will likely
cross the area later next week.

$$

AMZ330-060300-
Charleston Harbor-
1010 AM EDT Sun Oct 5 2025

.REST OF TODAY...E winds 10 to 15 kt. A slight chance of showers
late.
.TONIGHT...E winds 10 to 15 kt. A slight chance of showers and
tstms.
.MON...NE winds 10 to 15 kt with gusts to 20 kt. A slight chance
of showers and tstms.
.MON NIGHT...E winds 10 to 15 kt.
.TUE...E winds 10 to 15 kt.
.TUE NIGHT...E winds 5 to 10 kt.
.WED...E winds 5 to 10 kt.
.WED NIGHT...E winds 5 to 10 kt. A slight chance of showers.
.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 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.

$$

AMZ350-060300-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1010 AM EDT Sun Oct 5 2025

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

.REST OF TODAY...E winds 15 to 20 kt with gusts to 25 kt. Seas
5 to 6 ft. Wave Detail: E 6 ft at 8 seconds and E 2 ft at
13 seconds. A slight chance of showers late.
.TONIGHT...E winds 15 to 20 kt. Seas 5 to 6 ft. Wave Detail: E
6 ft at 8 seconds and E 2 ft at 13 seconds. A slight chance of
showers and tstms.
.MON...E winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 6 ft.
Wave Detail: E 6 ft at 8 seconds and E 2 ft at 13 seconds. A
slight chance of showers and tstms.
.MON NIGHT...E winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Seas 5 to 6 ft. Wave Detail: E 6 ft at 8 seconds.
A slight chance of showers and tstms in the evening.
.TUE...E winds 10 to 15 kt. Seas 5 to 6 ft, subsiding to 4 to
5 ft in the afternoon. Wave Detail: E 5 ft at 8 seconds.
.TUE NIGHT...E winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 4 to 5 ft. Wave Detail: SE 5 ft at 8 seconds.
.WED...E winds 5 to 10 kt. Seas 4 to 5 ft.
.WED NIGHT...E winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance
of showers.
.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 25 to 30 kt. Seas 7 to 9 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ352-060300-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1010 AM EDT Sun Oct 5 2025

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

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

Winds and seas higher in and near tstms.

$$

AMZ354-060300-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1010 AM EDT Sun Oct 5 2025

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

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

Winds and seas higher in and near tstms.

$$

AMZ374-060300-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1010 AM EDT Sun Oct 5 2025

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

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

Winds and seas higher in and near tstms.

$$