302
FZUS52 KCHS 300615
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
215 AM EDT Wed Sep 30 2026

South Santee River SC to Altamaha Sound GA out 60 NM, including
Charleston Harbor and Grays Reef National Marine Sanctuary

AMZ300-302000-
215 AM EDT Wed Sep 30 2026

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will extend across the region through this week.
Unsettled weather could return late week through the weekend.

$$

AMZ340-302000-
Charleston Harbor-
215 AM EDT Wed Sep 30 2026

.REST OF TONIGHT...E winds 5 kt.
.WED...E winds 5 to 10 kt.
.WED NIGHT...E winds 5 to 10 kt.
.THU...E winds 5 to 10 kt. Patchy fog in the morning.
.THU NIGHT...E winds 5 to 10 kt, becoming SE after midnight.
.FRI...E winds 5 kt, becoming SE in the afternoon.
.FRI NIGHT...S winds 5 to 10 kt.
.SAT...S winds 5 to 10 kt. A chance of showers with a slight
chance of tstms.
.SAT NIGHT...SE winds 5 to 10 kt. A chance of showers and tstms.
.SUN...SE winds 5 to 10 kt. Showers likely with a chance of
tstms.
.SUN NIGHT...W winds 5 to 10 kt. Showers likely with a slight
chance of tstms.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 78 degrees.

$$

AMZ360-302000-
Coastal waters from South Santee River to Edisto Beach SC out
20 NM-
215 AM EDT Wed Sep 30 2026

.REST OF TONIGHT...E winds 5 kt. Seas 2 ft. Wave Detail: S 2 ft
at 4 seconds and E 1 foot at 10 seconds.
.WED...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
4 seconds and E 1 foot at 10 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 4 seconds and E 1 foot at 11 seconds.
.THU...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
4 seconds and E 1 foot at 11 seconds.
.THU NIGHT...E winds 5 to 10 kt, becoming SE after midnight. Seas
2 ft. Wave Detail: E 2 ft at 4 seconds and E 1 foot at
12 seconds.
.FRI...SE winds 5 kt. Seas 2 ft. Wave Detail: SE 1 foot at
4 seconds and E 1 foot at 12 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.SAT...S winds 5 to 10 kt. Seas 2 ft. A slight chance of showers
and tstms.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely
with a chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ362-302000-
Coastal waters from Edisto Beach SC to Savannah GA out 20 NM-
215 AM EDT Wed Sep 30 2026

.REST OF TONIGHT...SE winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 4 seconds and E 1 foot at 10 seconds.
.WED...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 1 foot at
4 seconds and E 1 foot at 12 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 4 seconds and E 1 foot at 12 seconds.
.THU...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
4 seconds and E 1 foot at 11 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 4 seconds and E 1 foot at 11 seconds.
.FRI...SE winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and E 1 foot at 11 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers and tstms after midnight.
.SAT...SE winds 5 to 10 kt. Seas 2 ft. A chance of showers with a
slight chance of tstms.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN NIGHT...SW winds 10 kt. Seas 2 to 3 ft. Showers likely with
a slight chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ364-302000-
Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm,
including Grays Reef National Marine Sanctuary-
215 AM EDT Wed Sep 30 2026

.REST OF TONIGHT...SE winds 5 kt. Seas 2 ft. Wave Detail: SE
1 foot at 4 seconds and E 1 foot at 10 seconds.
.WED...E winds 5 kt, increasing to 5 to 10 kt in the afternoon.
Seas 2 ft. Wave Detail: SE 1 foot at 5 seconds and E 1 foot at
10 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 5 seconds and E 1 foot at 11 seconds.
.THU...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
4 seconds and E 1 foot at 11 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 4 seconds and E 1 foot at 11 seconds.
.FRI...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and E 1 foot at 11 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers and tstms after midnight.
.SAT...SE winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 ft. A chance of showers
and tstms.
.SUN...SE winds 5 to 10 kt. Seas 2 ft. A chance of showers and
tstms.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Showers likely with
a slight chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ380-302000-
Waters from South Santee River SC to Edisto Beach SC extending
from 20 to 60 NM-
215 AM EDT Wed Sep 30 2026

.REST OF TONIGHT...SE winds 5 kt. Seas 2 ft. Wave Detail: E 2 ft
at 10 seconds and S 1 foot at 4 seconds.
.WED...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and E 2 ft at 10 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 3 seconds and E 2 ft at 11 seconds.
.THU...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 4 seconds and E 2 ft at 11 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 4 seconds and E 2 ft at 11 seconds.
.FRI...SE winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and E 2 ft at 11 seconds.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 ft. A slight chance of
showers after midnight.
.SAT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
with a slight chance of tstms.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SUN...SE winds 5 to 10 kt. Seas 3 ft. A chance of showers and
tstms.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Showers likely with
a chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ382-302000-
Waters from Edisto Beach SC to Savannah GA extending from 20 to
60 NM-
215 AM EDT Wed Sep 30 2026

.REST OF TONIGHT...SE winds 10 kt, diminishing to 5 kt late. Seas
2 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at 10 seconds.
.WED...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and E 2 ft at 11 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 4 seconds and E 2 ft at 11 seconds.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
4 seconds and E 2 ft at 11 seconds. A slight chance of showers in
the afternoon.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 4 seconds and E 2 ft at 11 seconds.
.FRI...SE winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and E 2 ft at 11 seconds. A slight chance of showers.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers with a slight chance of tstms after midnight.
.SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SUN...S winds 10 kt. Seas 3 ft. A chance of showers and tstms.
.SUN NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Showers likely with
a chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ384-302000-
Waters from Savannah GA to Altamaha Sound GA extending from 20 to
60 NM-
215 AM EDT Wed Sep 30 2026

.REST OF TONIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail:
SE 2 ft at 4 seconds and E 1 foot at 10 seconds.
.WED...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
5 seconds and E 2 ft at 10 seconds.
.WED NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 5 seconds and E 2 ft at 10 seconds.
.THU...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
4 seconds and E 2 ft at 10 seconds.
.THU NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 4 seconds and E 2 ft at 11 seconds.
.FRI...SE winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and E 2 ft at 11 seconds. A slight chance of showers. A
slight chance of tstms in the afternoon.
.FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms after midnight.
.SAT...SE winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SAT NIGHT...SE winds 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN...S winds 10 kt. Seas 3 ft. A chance of showers and tstms.
.SUN NIGHT...S winds 10 kt. Seas 2 to 3 ft. Showers likely with a
chance of tstms.

Winds and seas higher in and near tstms.

$$