Coastal Waters Forecast
Issued by NWS Charleston, SC

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
615
FZUS52 KCHS 100935
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
535 AM EDT Sun Aug 10 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

AMZ300-102215-
535 AM EDT Sun Aug 10 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A stationary front will linger south of the area through early
this week, while high pressure remains centered well to our
north.

$$

AMZ330-102215-
Charleston Harbor-
535 AM EDT Sun Aug 10 2025

.TODAY...E winds 10 to 15 kt. Showers, tstms. Rain heavy at times
with vsby 1 NM or less.
.TONIGHT...SE winds 5 to 10 kt. Tstms likely. Showers. Rain heavy
at times with vsby 1 NM or less.
.MON...SE winds 5 to 10 kt. Tstms likely. Showers.
.MON NIGHT...SE winds 5 to 10 kt. Showers likely with a chance of
tstms.
.TUE...S winds 5 to 10 kt. Showers likely with a chance of tstms.
.TUE NIGHT...SW winds 5 kt. A chance of showers and tstms.
.WED...SW winds 5 to 10 kt. A chance of showers and tstms.
.WED NIGHT...SW winds 5 to 10 kt. A chance of showers and tstms.
.THU...SW winds 5 to 10 kt. A chance of showers and tstms.
.THU 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 82 degrees.

$$

AMZ350-102215-
Waters from South Santee River to Edisto Beach SC out 20 NM-
535 AM EDT Sun Aug 10 2025

.TODAY...E winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft
at 8 seconds and SE 2 ft at 5 seconds. Showers with tstms likely.
Rain heavy at times with vsby 1 NM or less.
.TONIGHT...SE winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft
at 8 seconds and SE 2 ft at 5 seconds. Tstms likely. Showers.
Rain heavy at times with vsby 1 NM or less.
.MON...SE winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
7 seconds. Tstms likely. Showers.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds and SE 1 foot at 10 seconds. Showers likely
with a chance of tstms.
.TUE...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 6 seconds and SE 1 foot at 9 seconds. Showers likely with a
chance of tstms.
.TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 6 seconds and SE 1 foot at 9 seconds. A chance of showers
and tstms.
.WED...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.
.THU...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-102215-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
535 AM EDT Sun Aug 10 2025

.TODAY...SE winds 10 to 15 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds and SE 2 ft at 5 seconds. Showers and tstms. Rain heavy
at times with vsby 1 NM or less.
.TONIGHT...SE winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 2 ft
at 5 seconds and E 2 ft at 8 seconds. Showers with tstms likely.
Rain heavy at times with vsby 1 NM or less.
.MON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 7 seconds. Showers with tstms likely in the morning, then
showers with a chance of tstms in the afternoon.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 6 seconds and E 1 foot at 10 seconds. A chance of tstms.
A chance of showers in the evening, then showers likely after
midnight.
.TUE...SE winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at
6 seconds and E 1 foot at 10 seconds. Showers likely with a
chance of tstms.
.TUE NIGHT...S winds 5 kt. Seas 2 ft. Wave Detail: E 2 ft at
6 seconds and E 1 foot at 9 seconds. A chance of showers and
tstms.
.WED...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.
.THU...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-102215-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
535 AM EDT Sun Aug 10 2025

.TODAY...E winds 10 kt, becoming SE. Seas 3 ft. Wave Detail: E 3
ft at 6 seconds. Showers with tstms likely. Rain heavy at times
with vsby 1 NM or less.
.TONIGHT...SE winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 2 ft
at 5 seconds and E 2 ft at 8 seconds. Showers and tstms likely in
the evening, then showers with a chance of tstms after midnight.
Rain heavy at times with vsby 1 NM or less.
.MON...SE winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at
5 seconds and E 2 ft at 8 seconds. A chance of tstms. Showers.
.MON NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 6 seconds and E 1 foot at 10 seconds. A chance of tstms.
A chance of showers in the evening, then showers likely after
midnight.
.TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 6 seconds and E 1 foot at 10 seconds. Showers likely with a
chance of tstms.
.TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 ft. Wave Detail: SE 2 ft at 6 seconds and E 1 foot at
9 seconds. A chance of showers and tstms.
.WED...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.
.THU...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-102215-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
535 AM EDT Sun Aug 10 2025

.TODAY...E winds 10 kt, becoming SE. Seas 3 to 4 ft. Wave Detail:
SE 3 ft at 5 seconds and NE 3 ft at 8 seconds. Showers and tstms
this morning, then showers with a chance of tstms this afternoon.
Rain heavy at times with vsby 1 NM or less.
.TONIGHT...SE winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at
8 seconds and SE 2 ft at 5 seconds. Tstms likely. Showers. Rain
heavy at times with vsby 1 NM or less.
.MON...SE winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
8 seconds and SE 2 ft at 5 seconds. Showers with tstms likely in
the morning, then showers with a chance of tstms in the
afternoon.
.MON NIGHT...SE winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
7 seconds. A chance of tstms. A chance of showers in the evening,
then showers likely after midnight.
.TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 8 seconds. Showers likely with a chance of tstms.
.TUE NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds. A slight chance of showers and tstms in the
evening, then a chance of showers and tstms after midnight.
.WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.THU...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.THU NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$