240
FZUS52 KCHS 081710
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
110 PM EDT Tue Jul 8 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

AMZ300-090615-
110 PM EDT Tue Jul 8 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Weak high pressure will extend across the area through the week.

$$

AMZ330-090615-
Charleston Harbor-
110 PM EDT Tue Jul 8 2025

.REST OF TODAY...S winds 10 kt, increasing to 15 kt with gusts to 20
kt this afternoon. A chance of showers and tstms.
.TONIGHT...S winds 5 to 10 kt.
.WED...S winds 10 to 15 kt. A chance of showers and tstms.
.WED NIGHT...S winds 10 kt. A chance of showers and tstms.
.THU...SW winds 10 to 15 kt. A chance of showers and tstms.
.THU NIGHT...SW winds 10 to 15 kt. A chance of showers and tstms.
.FRI...SW winds 10 to 15 kt. A chance of showers and tstms.
.FRI NIGHT...SW winds 10 to 15 kt. A chance of showers and tstms.
.SAT...SW winds 5 to 10 kt. A chance of showers and tstms.
.SAT 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 85 degrees.

$$

AMZ350-090615-
Waters from South Santee River to Edisto Beach SC out 20 NM-
110 PM EDT Tue Jul 8 2025

.REST OF TODAY...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SE 2 ft at 6 seconds. A slight chance of showers and
tstms.
.TONIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 5 seconds and SE 2 ft at 8 seconds.
.WED...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 5 seconds and SE 1 foot at 9 seconds. A chance of showers and
tstms.
.WED NIGHT...S winds 10 to 15 kt. Seas 3 ft. Wave Detail: S 3 ft
at 6 seconds. A chance of showers and tstms.
.THU...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: SE 3 ft
at 7 seconds and SW 2 ft at 4 seconds. A chance of showers and
tstms.
.THU NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 7 seconds and S 3 ft at 4 seconds.
Showers likely with a chance of tstms.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-090615-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
110 PM EDT Tue Jul 8 2025

.REST OF TODAY...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE
2 ft at 7 seconds. A slight chance of showers and tstms.
.TONIGHT...S winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 8 seconds. A slight chance of showers
and tstms.
.WED...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft at
5 seconds and SE 2 ft at 9 seconds. A chance of showers and
tstms.
.WED NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S
2 ft at 5 seconds. A chance of showers and tstms.
.THU...SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at
7 seconds. A chance of showers and tstms.
.THU NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 3 ft at 7 seconds. A chance of showers and
tstms.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.SAT...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and
tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-090615-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
110 PM EDT Tue Jul 8 2025

.REST OF TODAY...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE
2 ft at 8 seconds and S 1 foot at 4 seconds. A slight chance of
showers and tstms.
.TONIGHT...S winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 8 seconds. A slight chance of showers
and tstms.
.WED...S winds 10 kt. Seas 2 ft. Wave Detail: S 2 ft at 4 seconds
and SE 2 ft at 7 seconds. A chance of showers and tstms.
.WED NIGHT...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 4 seconds and SE 2 ft at 7 seconds. A chance of showers and
tstms.
.THU...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and S 2 ft at 4 seconds. A chance of showers and
tstms.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft.
Wave Detail: SE 3 ft at 7 seconds and S 2 ft at 4 seconds. A
chance of showers and tstms.
.FRI...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and
tstms.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.SAT...SW winds 10 kt. Seas 3 ft. A chance of showers and tstms.
.SAT NIGHT...SW winds 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-090615-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
110 PM EDT Tue Jul 8 2025

.REST OF TODAY...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE
2 ft at 8 seconds and SW 1 foot at 4 seconds.
.TONIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 8 seconds. A slight chance of showers
and tstms after midnight.
.WED...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 7 seconds. A chance of showers and
tstms, mainly in the morning.
.WED NIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 8 seconds and S 2 ft at 4 seconds. A chance of showers and
tstms.
.THU...SW winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
7 seconds and SW 2 ft at 4 seconds. A chance of showers and
tstms.
.THU NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 7 seconds and S 2 ft at 4 seconds.
A chance of showers and tstms.
.FRI...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers
and tstms.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
.SAT...SW winds 10 kt. Seas 3 to 4 ft. A chance of showers with a
slight chance of tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$