180
FZUS52 KCHS 022139
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
539 PM EDT Fri Oct 2 2026

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

AMZ300-031100-
539 PM EDT Fri Oct 2 2026

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will extend across the region into the weekend. A
cold front will push through the waters Monday, with another high
pressure building in mid-week causing increasing winds and seas.

$$

AMZ340-031100-
Charleston Harbor-
539 PM EDT Fri Oct 2 2026

.TONIGHT...S winds 5 kt. A slight chance of showers and tstms
late.
.SAT...Variable winds 5 kt. Showers likely. A slight chance of
tstms in the morning, then a chance of tstms in the afternoon.
.SAT NIGHT...SE winds 5 kt. A chance of showers and tstms in the
evening, then showers likely with a slight chance of tstms after
midnight.
.SUN...S winds 5 to 10 kt. Showers likely with a slight chance of
tstms in the morning, then showers with a chance of tstms in the
afternoon.
.SUN NIGHT...SW winds 5 kt, becoming W after midnight. Showers. A
chance of tstms, mainly in the evening.
.MON...N winds 5 to 10 kt. Showers. A slight chance of tstms in
the afternoon.
.MON NIGHT...NE winds 10 to 15 kt with gusts to 25 kt. Showers
likely with a slight chance of tstms in the evening, then a
chance of showers after midnight.
.TUE...NE winds 20 to 25 kt. Waves 2 to 3 ft. A chance of
showers.
.TUE NIGHT...NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of
showers.
.WED...NE winds 15 to 20 kt. Waves 1 to 2 ft. A chance of
showers.
.WED NIGHT...NE winds 15 to 20 kt. Waves 1 to 2 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 80 degrees.

$$

AMZ360-031100-
Coastal waters from South Santee River to Edisto Beach SC out
20 NM-
539 PM EDT Fri Oct 2 2026

.TONIGHT...S winds 5 to 10 kt, becoming SW late. Seas 2 ft. Wave
Detail: E 2 ft at 10 seconds and S 1 foot at 4 seconds. A slight
chance of showers and tstms late.
.SAT...Variable winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at
6 seconds and E 2 ft at 12 seconds. A chance of showers with a
slight chance of tstms.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 7 seconds and E 1 foot at 11 seconds. A chance of tstms.
A chance of showers in the evening, then showers likely after
midnight.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 7 seconds and E 1 foot at 11 seconds. Showers likely with a
slight chance of tstms in the morning, then showers with a chance
of tstms in the afternoon.
.SUN NIGHT...SW 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. A chance
of tstms, mainly in the evening.
.MON...N winds 5 to 10 kt, becoming NE 10 to 15 kt with gusts to
20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft at
5 seconds and E 1 foot at 10 seconds. Showers. A slight chance of
tstms in the afternoon.
.MON NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 3 to 4 ft, building to 4 to 5 ft after
midnight. A slight chance of tstms. Showers, mainly in the
evening.
.TUE...NE winds 25 to 30 kt. Seas 6 to 8 ft. A chance of showers
with a slight chance of tstms.
.TUE NIGHT...NE winds 25 to 30 kt. Seas 7 to 9 ft. A chance of
showers.
.WED...NE winds 25 to 30 kt. Seas 7 to 9 ft. A chance of showers.
.WED NIGHT...NE winds 25 to 30 kt. Seas 6 to 8 ft. A slight
chance of showers.

Winds and seas higher in and near tstms.

$$

AMZ362-031100-
Coastal waters from Edisto Beach SC to Savannah GA out 20 NM-
539 PM EDT Fri Oct 2 2026

.TONIGHT...S winds 5 kt, becoming SW late. Seas 2 ft. Wave
Detail: SE 2 ft at 11 seconds and SE 1 foot at 4 seconds. A
slight chance of showers and tstms after midnight. A chance of
showers and tstms late.
.SAT...E winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at 6 seconds
and E 2 ft at 12 seconds. A chance of showers. A chance of tstms,
mainly in the morning.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 7 seconds and E 1 foot at 12 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 7 seconds and E 1 foot at 11 seconds. A chance of tstms.
Showers.
.SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 6 seconds and E 1 foot at 11 seconds. Showers. A chance
of tstms, mainly in the evening.
.MON...NE winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and
E 1 foot at 10 seconds. Showers. A slight chance of tstms in the
morning, then a chance of tstms in the afternoon.
.MON NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 2 to 3 ft, building to 4 to 5 ft after
midnight. Showers with a chance of tstms in the evening, then
showers likely with a slight chance of tstms after midnight.
.TUE...NE winds 25 to 30 kt. Seas 6 to 8 ft. Showers likely with
a slight chance of tstms.
.TUE NIGHT...NE winds 30 kt. Seas 8 to 10 ft. A chance of showers
with a slight chance of tstms.
.WED...NE winds 25 to 30 kt. Seas 7 to 9 ft. A chance of showers.
.WED NIGHT...NE winds 25 to 30 kt. Seas 6 to 8 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ364-031100-
Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm,
including Grays Reef National Marine Sanctuary-
539 PM EDT Fri Oct 2 2026

.TONIGHT...SE winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at
4 seconds and E 1 foot at 11 seconds. A slight chance of tstms. A
slight chance of showers early this evening, then a chance of
showers late this evening.
.SAT...E winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
6 seconds and E 2 ft at 11 seconds. A chance of showers. A chance
of tstms, mainly in the morning.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 6 seconds and E 1 foot at 11 seconds. A chance of showers and
tstms.
.SUN...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 7 seconds and E 1 foot at 11 seconds. A chance of tstms.
Showers.
.SUN NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 6 seconds and E 1 foot at 11 seconds. Showers. A chance
of tstms, mainly in the evening.
.MON...SE winds 5 to 10 kt, becoming NE 10 to 15 kt in the
afternoon. Seas 2 ft. Wave Detail: SE 2 ft at 6 seconds and E
1 foot at 10 seconds. Showers. A chance of tstms in the morning,
then tstms likely in the afternoon.
.MON NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after
midnight. Showers with tstms likely in the evening, then showers
likely with a chance of tstms after midnight.
.TUE...NE winds 25 to 35 kt. Seas 6 to 8 ft. Showers likely with
a chance of tstms.
.TUE NIGHT...NE winds 30 to 35 kt. Seas 8 to 10 ft. A chance of
showers with a slight chance of tstms.
.WED...NE winds 30 kt. Seas 8 to 10 ft. A chance of showers with
a slight chance of tstms.
.WED NIGHT...NE winds 25 to 30 kt. Seas 7 to 9 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ380-031100-
Waters from South Santee River SC to Edisto Beach SC extending
from 20 to 60 NM-
539 PM EDT Fri Oct 2 2026

.TONIGHT...S winds 5 to 10 kt, becoming SW late. Seas 2 ft. Wave
Detail: S 2 ft at 4 seconds and E 2 ft at 10 seconds. A slight
chance of showers and tstms after midnight.
.SAT...SW winds 5 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: S 2 ft at 6 seconds and E 2 ft at 11 seconds.
A chance of showers. A chance of tstms, mainly in the morning.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
2 ft at 7 seconds and E 2 ft at 11 seconds. A chance of showers
and tstms.
.SUN...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 7 seconds and E 2 ft at 11 seconds. A chance of tstms.
Showers.
.SUN NIGHT...SW winds 10 kt. Seas 3 ft. Wave Detail: S 2 ft at
6 seconds and E 2 ft at 10 seconds. Showers. A chance of tstms,
mainly in the evening.
.MON...NW winds 10 kt, becoming N with gusts to 20 kt in the
afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and E
1 foot at 10 seconds. Showers with a slight chance of tstms.
.MON NIGHT...NE winds 15 to 20 kt with gusts to 25 kt, increasing
to 25 to 30 kt after midnight. Seas 3 to 4 ft, building to 4 to
6 ft after midnight. A chance of tstms. Showers.
.TUE...NE winds 30 to 35 kt. Seas 8 to 10 ft. Showers likely with
a slight chance of tstms.
.TUE NIGHT...NE winds 25 to 35 kt. Seas 9 to 12 ft. A chance of
showers with a slight chance of tstms.
.WED...NE winds 30 kt. Seas 9 to 11 ft. A chance of showers with
a slight chance of tstms.
.WED NIGHT...NE winds 25 to 30 kt. Seas 8 to 10 ft. A chance of
showers with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ382-031100-
Waters from Edisto Beach SC to Savannah GA extending from 20 to
60 NM-
539 PM EDT Fri Oct 2 2026

.TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and E 2 ft at
11 seconds. A slight chance of showers and tstms after midnight.
A chance of showers and tstms late.
.SAT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 6 seconds and E 2 ft at 12 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.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and E 2 ft at 12 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.SUN...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
7 seconds and E 2 ft at 11 seconds. A chance of tstms. Showers.
.SUN NIGHT...SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 2 ft
at 6 seconds and E 2 ft at 11 seconds. Showers. A chance of
tstms, mainly in the evening.
.MON...W winds 10 kt, becoming NE in the afternoon. Seas 2 to
3 ft. Wave Detail: NE 3 ft at 6 seconds and E 2 ft at 10 seconds.
Showers. A slight chance of tstms in the morning, then a chance
of tstms in the afternoon.
.MON NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 3 to 4 ft, building to 4 to 6 ft after
midnight. Showers with a chance of tstms.
.TUE...NE winds 25 to 35 kt. Seas 7 to 9 ft. Showers likely with
a chance of tstms.
.TUE NIGHT...NE winds 30 to 35 kt. Seas 10 to 12 ft. A chance of
showers with a slight chance of tstms.
.WED...NE winds 30 kt. Seas 10 to 12 ft. A chance of showers with
a slight chance of tstms.
.WED NIGHT...NE winds 25 to 30 kt. Seas 9 to 11 ft. A chance of
showers with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$

AMZ384-031100-
Waters from Savannah GA to Altamaha Sound GA extending from 20 to
60 NM-
539 PM EDT Fri Oct 2 2026

.TONIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas
2 to 3 ft. Wave Detail: SE 2 ft at 4 seconds and E 2 ft at
11 seconds. A slight chance of showers and tstms this evening,
then a chance of showers and tstms after midnight.
.SAT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft
at 6 seconds and E 2 ft at 11 seconds. A chance of showers. A
chance of tstms, mainly in the morning.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 7 seconds and E 2 ft at 12 seconds. A chance of tstms. A
chance of showers in the evening, then showers likely after
midnight.
.SUN...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at
7 seconds and E 2 ft at 11 seconds. A chance of tstms. Showers.
.SUN NIGHT...S winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft
at 6 seconds and E 1 foot at 11 seconds. Showers. A chance of
tstms, mainly in the evening.
.MON...SW winds 10 kt, becoming NW in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 6 seconds and E 1 foot at
10 seconds. Showers with a chance of tstms in the morning, then
showers with tstms likely in the afternoon.
.MON NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 2 to 3 ft, building to 4 to 5 ft after
midnight. Showers. Tstms likely, mainly in the evening.
.TUE...NE winds 25 to 35 kt. Seas 7 to 9 ft. Showers with a
chance of tstms.
.TUE NIGHT...NE winds 30 to 35 kt. Seas 10 to 13 ft. Showers
likely with a chance of tstms.
.WED...NE winds 30 kt. Seas 10 to 13 ft. Showers likely with a
slight chance of tstms.
.WED NIGHT...NE winds 25 to 30 kt. Seas 9 to 13 ft. A chance of
showers with a slight chance of tstms.

Winds and seas higher in and near tstms.

$$