051
FZUS52 KCHS 172133
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
433 PM EST Mon Nov 17 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

AMZ300-181030-
433 PM EST Mon Nov 17 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Dry high pressure is expected to prevail across the area through
the week. A cold front is expected to move through this weekend.

$$

AMZ330-181030-
Charleston Harbor-
433 PM EST Mon Nov 17 2025

.TONIGHT...E winds 5 kt, becoming NE less than 5 kt.
.TUE...E winds 5 kt.
.TUE NIGHT...SE winds 5 kt, becoming SW after midnight.
.WED...SW winds 5 to 10 kt.
.WED NIGHT...SW winds 5 kt.
.THU...SW winds 5 kt.
.THU NIGHT...SW winds 5 kt.
.FRI...SW winds 5 to 10 kt.
.FRI NIGHT...SW winds 10 kt.
.SAT...SW winds 10 kt. A slight chance of showers.
.SAT NIGHT...SW winds 5 to 10 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 62 degrees.

$$

AMZ350-181030-
Waters from South Santee River to Edisto Beach SC out 20 NM-
433 PM EST Mon Nov 17 2025

.TONIGHT...E winds 5 kt, becoming NE. Seas 1 to 2 ft. Wave
Detail: NE 2 ft at 5 seconds and SE 1 foot at 8 seconds.
.TUE...E winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: NE 1 foot
at 5 seconds and E 1 foot at 9 seconds.
.TUE NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas
2 ft. Wave Detail: S 1 foot at 3 seconds and NE 1 foot at
5 seconds.
.WED...SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: S 1 foot
at 4 seconds and E 1 foot at 8 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: SE
1 foot at 6 seconds.
.THU...W winds 5 to 10 kt, becoming SW in the afternoon. Seas
1 foot or less. Wave Detail: S 1 foot at 5 seconds.
.THU NIGHT...SW winds 5 to 10 kt. Seas 1 foot or less.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 1 to 2 ft.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers.
.SAT NIGHT...SW 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.

$$

AMZ352-181030-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
433 PM EST Mon Nov 17 2025

.TONIGHT...E winds 5 to 10 kt, diminishing to 5 kt. Seas 1 to
2 ft. Wave Detail: NE 2 ft at 4 seconds and SE 1 foot at 8
seconds.
.TUE...E winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: E 2 ft at
7 seconds.
.TUE NIGHT...SE winds 5 kt, becoming SW after midnight. Seas
2 ft. Wave Detail: E 1 foot at 7 seconds.
.WED...SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: S 1 foot
at 4 seconds and E 1 foot at 7 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft in the evening, then
1 foot or less. Wave Detail: E 1 foot at 6 seconds.
.THU...SW winds 5 kt. Seas 1 foot or less. Wave Detail: E 1 foot
at 6 seconds.
.THU NIGHT...S winds 5 kt. Seas 1 foot or less.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 1 to 2 ft.
.SAT...SW winds 10 kt. Seas 1 to 2 ft. A slight chance of
showers.
.SAT NIGHT...SW winds 10 kt. Seas 1 to 2 ft.

$$

AMZ354-181030-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
433 PM EST Mon Nov 17 2025

.TONIGHT...E winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: NE 2
ft at 5 seconds and SE 1 foot at 8 seconds.
.TUE...E winds 10 kt, diminishing to 5 kt in the afternoon. Seas
1 to 2 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 foot at
8 seconds.
.TUE NIGHT...SE winds 5 kt, becoming SW after midnight. Seas
1 to 2 ft. Wave Detail: SE 2 ft at 6 seconds.
.WED...SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: E 1 foot
at 6 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: E
1 foot at 6 seconds.
.THU...W winds 5 kt, becoming S in the afternoon. Seas 1 to 2 ft.
Wave Detail: E 1 foot at 6 seconds, becoming E 1 foot at
7 seconds.
.THU NIGHT...S winds 5 to 10 kt. Seas 1 foot or less.
.FRI...SW winds 5 to 10 kt. Seas 1 foot or less.
.FRI NIGHT...SW winds 10 kt. Seas 1 to 2 ft.
.SAT...SW winds 10 kt. Seas 1 to 2 ft.
.SAT NIGHT...SW winds 10 kt. Seas 1 to 2 ft.

$$

AMZ374-181030-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
433 PM EST Mon Nov 17 2025

.TONIGHT...NE winds 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft
at 5 seconds and SE 1 foot at 8 seconds.
.TUE...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
7 seconds and E 1 foot at 13 seconds.
.TUE NIGHT...SE winds 5 to 10 kt, becoming SW after midnight.
Seas 2 to 3 ft. Wave Detail: NE 2 ft at 8 seconds and S 1 foot at
4 seconds.
.WED...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: NE 2 ft at 8
seconds and S 1 foot at 4 seconds.
.WED NIGHT...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 1
foot at 4 seconds and E 1 foot at 7 seconds.
.THU...W winds 5 to 10 kt. Seas 2 ft. Wave Detail: SW 1 foot at 3
seconds and E 1 foot at 7 seconds.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 ft.
.FRI...SW winds 5 to 10 kt. Seas 2 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT...SW winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft.

$$