779
FZUS52 KCHS 151920
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
319 PM EDT Wed Oct 15 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

AMZ300-160800-
319 PM EDT Wed Oct 15 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 tonight. Another cold
front could impact the area late in the weekend.

$$

AMZ330-160800-
Charleston Harbor-
319 PM EDT Wed Oct 15 2025

.TONIGHT...N winds 5 to 10 kt.
.THU...N winds 5 to 10 kt.
.THU NIGHT...NE winds 5 to 10 kt.
.FRI...NE winds 5 to 10 kt.
.FRI NIGHT...NE winds 5 kt.
.SAT...NE winds 5 kt, becoming SE in the afternoon.
.SAT NIGHT...S winds 5 kt.
.SUN...S winds 10 to 15 kt.
.SUN NIGHT...SW winds 10 to 15 kt. A slight chance of showers.
.MON...NW winds 10 kt.
.MON NIGHT...NW winds 5 to 10 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 71 degrees.

$$

AMZ350-160800-
Waters from South Santee River to Edisto Beach SC out 20 NM-
319 PM EDT Wed Oct 15 2025

.TONIGHT...N winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 9 seconds.
.THU...NE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: NE 4 ft at 9 seconds.
.THU NIGHT...NE winds 15 kt with gusts to 20 kt. Seas 4 to 5 ft.
Wave Detail: NE 5 ft at 9 seconds.
.FRI...NE winds 10 to 15 kt. Seas 4 to 5 ft. Wave Detail: E 5 ft
at 10 seconds.
.FRI NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight. Wave Detail: E 4 ft at 9 seconds,
becoming E 3 ft at 9 seconds.
.SAT...E winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
9 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...S winds 10 to 15 kt. Seas 2 to 3 ft.
.SUN NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. A slight
chance of showers.
.MON...NW winds 15 to 20 kt. Seas 4 to 5 ft.
.MON NIGHT...NW winds 5 to 10 kt. Seas 2 to 3 ft.

$$

AMZ352-160800-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
319 PM EDT Wed Oct 15 2025

.TONIGHT...NE winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at
8 seconds.
.THU...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 9 seconds.
.THU NIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Seas 3 to
4 ft. Wave Detail: E 4 ft at 9 seconds.
.FRI...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 10 seconds.
.FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds.
.SAT...E winds 5 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at
9 seconds.
.SAT NIGHT...S winds 5 kt. Seas 2 to 3 ft.
.SUN...S winds 10 to 15 kt. Seas 2 to 3 ft.
.SUN NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. A slight
chance of showers.
.MON...NW winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft.

$$

AMZ354-160800-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
319 PM EDT Wed Oct 15 2025

.TONIGHT...NE winds 10 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at
8 seconds.
.THU...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft
at 9 seconds.
.THU NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds.
.FRI...NE winds 10 to 15 kt. Seas 4 ft. Wave Detail: E 4 ft at
9 seconds.
.FRI NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E
4 ft at 10 seconds.
.SAT...E winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at
9 seconds.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...S winds 10 to 15 kt. Seas 2 to 3 ft.
.SUN NIGHT...SW winds 15 kt. Seas 3 to 4 ft. A slight chance of
showers.
.MON...N winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft.

$$

AMZ374-160800-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
319 PM EDT Wed Oct 15 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.TONIGHT...NE winds 10 to 15 kt with gusts to 20 kt. Seas 4 to
6 ft. Wave Detail: NE 6 ft at 8 seconds.
.THU...NE winds 15 to 20 kt. Seas 4 to 6 ft. Wave Detail: NE 6 ft
at 10 seconds.
.THU NIGHT...NE winds 15 kt with gusts to 20 kt. Seas 5 to 6 ft.
Wave Detail: NE 6 ft at 10 seconds.
.FRI...NE winds 10 to 15 kt. Seas 5 to 6 ft. Wave Detail: E 6 ft
at 10 seconds.
.FRI NIGHT...NE winds 10 to 15 kt, becoming E 5 to 10 kt after
midnight. Seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
Wave Detail: E 6 ft at 10 seconds, becoming E 5 ft at 9 seconds.
.SAT...E winds 5 to 10 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft
in the afternoon. Wave Detail: E 4 ft at 9 seconds.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft.
.SUN...S winds 10 to 15 kt. Seas 4 to 5 ft.
.SUN NIGHT...SW winds 15 to 20 kt. Seas 4 to 6 ft. A slight
chance of showers and tstms.
.MON...NW winds 15 to 20 kt. Seas 4 to 6 ft.
.MON NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft.

Winds and seas higher in and near tstms.

$$