113
FZUS52 KCHS 132038
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
438 PM EDT Mon Oct 13 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

AMZ300-140915-
438 PM EDT Mon Oct 13 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will extend into the region this week. A dry cold
front will drop south through the area Wednesday.

$$

AMZ330-140915-
Charleston Harbor-
438 PM EDT Mon Oct 13 2025

.TONIGHT...NW winds 10 to 15 kt, diminishing to 5 to 10 kt.
.TUE...N winds 5 to 10 kt, increasing to 10 to 15 kt in the
afternoon.
.TUE NIGHT...N winds 10 kt.
.WED...N winds 10 kt.
.WED NIGHT...N winds 5 to 10 kt.
.THU...NE winds 10 kt.
.THU NIGHT...NE winds 5 to 10 kt.
.FRI...NE winds 5 to 10 kt.
.FRI NIGHT...E winds 5 kt.
.SAT...E winds 5 kt.
.SAT NIGHT...S winds 5 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 70 degrees.

$$

AMZ350-140915-
Waters from South Santee River to Edisto Beach SC out 20 NM-
438 PM EDT Mon Oct 13 2025

.TONIGHT...N winds 10 to 15 kt, becoming NW 5 to 10 kt. Seas 3 to
4 ft. Wave Detail: NE 4 ft at 9 seconds and W 2 ft at 4 seconds.
.TUE...N winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: E 4 ft at 10 seconds.
.TUE NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
5 ft. Wave Detail: NE 5 ft at 7 seconds.
.WED...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 8 seconds.
.WED NIGHT...N winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: E
5 ft at 10 seconds.
.THU...NE winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft. Wave
Detail: NE 5 ft at 10 seconds.
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT...E winds 5 kt. Seas 2 to 3 ft.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.

$$

AMZ352-140915-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
438 PM EDT Mon Oct 13 2025

.TONIGHT...N winds 10 to 15 kt, becoming NW 5 to 10 kt. Seas 3 to
4 ft. Wave Detail: NE 4 ft at 10 seconds.
.TUE...N winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
10 seconds.
.TUE NIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after
midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at 10 seconds.
.WED...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the
afternoon. Seas 4 to 5 ft. Wave Detail: NE 5 ft at 7 seconds.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 8 seconds.
.THU...NE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: E 4 ft at 10 seconds.
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT...E winds 5 kt. Seas 2 to 3 ft.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.

$$

AMZ354-140915-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
438 PM EDT Mon Oct 13 2025

.TONIGHT...N winds 10 to 15 kt, becoming NW 5 to 10 kt. Seas 3 to
4 ft. Wave Detail: NE 4 ft at 10 seconds.
.TUE...N winds 10 kt. Seas 3 ft. Wave Detail: E 3 ft at
10 seconds.
.TUE NIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after
midnight. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 9 seconds.
.WED...NE winds 15 to 20 kt. Seas 4 to 5 ft. Wave Detail: NE 5 ft
at 6 seconds.
.WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 8 seconds.
.THU...NE winds 15 kt with gusts to 20 kt. Seas 3 to 4 ft,
building to 4 to 5 ft in the afternoon. Wave Detail: E 4 ft at
9 seconds, becoming E 4 ft at 10 seconds.
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 5 ft.
.FRI...NE winds 10 to 15 kt. Seas 3 to 4 ft.
.FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT...E winds 5 to 10 kt. Seas 2 to 3 ft.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.

$$

AMZ374-140915-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
438 PM EDT Mon Oct 13 2025

.TONIGHT...N winds 10 to 15 kt with gusts to 20 kt. Seas 4 to
5 ft. Wave Detail: N 5 ft at 9 seconds.
.TUE...N winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: NE 5 ft
at 10 seconds.
.TUE NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
5 ft, building to 4 to 6 ft after midnight. Wave Detail: NE 5 ft
at 9 seconds, becoming NE 6 ft at 9 seconds.
.WED...NE winds 15 to 20 kt with gusts to 25 kt. Seas 5 to 7 ft.
Wave Detail: NE 6 ft at 8 seconds.
.WED NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Seas 5 to
6 ft, subsiding to 4 to 6 ft after midnight. Wave Detail: NE 6 ft
at 9 seconds.
.THU...NE winds 15 to 20 kt. Seas 4 to 6 ft, building to 5 to
7 ft in the afternoon. Wave Detail: NE 6 ft at 10 seconds.
.THU NIGHT...NE winds 15 kt with gusts to 20 kt. Seas 5 to 7 ft,
subsiding to 5 to 6 ft after midnight.
.FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 5 to 10 kt. Seas 4 to 5 ft.
.SAT...E winds 5 to 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft.

$$