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 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
909
FZUS52 KCHS 141309
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
909 AM EDT Sat Jun 14 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

AMZ300-150215-
909 AM EDT Sat Jun 14 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Atlantic high pressure will build across the Southeast U.S.
through the weekend into next week.

$$

AMZ330-150215-
Charleston Harbor-
909 AM EDT Sat Jun 14 2025

.TODAY...SW winds 10 kt, becoming S 15 kt with gusts to 20 kt
this afternoon. A slight chance of showers and tstms early this
afternoon. A chance of showers and tstms late.
.TONIGHT...SW winds 5 to 10 kt. A chance of showers and tstms.
.SUN...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts
to 20 kt in the afternoon. A chance of showers and tstms.
.SUN NIGHT...SW winds 10 to 15 kt. A chance of showers and tstms.
.MON...SW winds 10 to 15 kt. 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. A chance of showers and tstms,
mainly in the evening.
.TUE...SW winds 10 to 15 kt. A slight chance of showers and
tstms.
.TUE NIGHT...SW winds 10 to 15 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.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 81 degrees.

$$

AMZ350-150215-
Waters from South Santee River to Edisto Beach SC out 20 NM-
909 AM EDT Sat Jun 14 2025

.TODAY...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave
Detail: SE 4 ft at 8 seconds. A slight chance of showers and
tstms late.
.TONIGHT...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: S 4 ft at 8 seconds. A slight chance of showers and
tstms in the evening, then a chance of showers and tstms after
midnight.
.SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 9 seconds and S 3 ft at 5 seconds. A chance of tstms. A chance
of showers in the morning, then showers likely in the afternoon.
.SUN NIGHT...SW winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: SE 4 ft at 8 seconds and S 3 ft at 5 seconds. A
chance of tstms. A chance of showers in the evening, then showers
likely after midnight.
.MON...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 tstms. Showers
likely, mainly in the morning.
.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. Seas 3 to 4 ft. A chance of showers
and tstms.
.TUE NIGHT...SW winds 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.WED...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.WED NIGHT...SW winds 15 kt. Seas 3 ft. A chance of showers and
tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-150215-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
909 AM EDT Sat Jun 14 2025

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

Winds and seas higher in and near tstms.

$$

AMZ354-150215-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
909 AM EDT Sat Jun 14 2025

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

Winds and seas higher in and near tstms.

$$

AMZ374-150215-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
909 AM EDT Sat Jun 14 2025

.TODAY...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 8 seconds. A slight chance of showers and tstms late.
.TONIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 8 seconds. A slight chance of showers and tstms in the
evening, then a chance of showers and tstms after midnight.
.SUN...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 9 seconds. A chance of showers and tstms.
.SUN NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 9 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.MON...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft
at 8 seconds. Showers likely with a chance of tstms in the
morning, then a chance of showers with a slight chance of tstms
in the afternoon.
.MON NIGHT...S winds 10 to 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.
.TUE...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.TUE NIGHT...S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.WED...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers with
a slight chance of tstms.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. A chance of showers
with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$