362
FZUS52 KCHS 160530
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
129 AM EDT Thu Oct 16 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

AMZ300-161800-
129 AM EDT Thu Oct 16 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 cold front
could impact the area Sunday night or early Monday.

$$

AMZ330-161800-
Charleston Harbor-
129 AM EDT Thu Oct 16 2025

.REST OF TONIGHT...N winds 5 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...E winds 5 kt.
.SAT...Variable winds 5 kt.
.SAT NIGHT...S winds 5 kt.
.SUN...SW winds 10 to 15 kt.
.SUN NIGHT...SW winds 10 to 15 kt. A slight chance of showers.
.MON...N winds 5 to 10 kt.
.MON NIGHT...E winds 5 to 10 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 71 degrees.

$$

AMZ350-161800-
Waters from South Santee River to Edisto Beach SC out 20 NM-
129 AM EDT Thu Oct 16 2025

.REST OF TONIGHT...NE winds 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 9 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 15 kt with gusts to 20 kt. Seas 3 to 4 ft.
Wave Detail: NE 4 ft at 9 seconds.
.FRI...NE winds 10 to 15 kt. Seas 4 to 5 ft, subsiding to 3 to
4 ft in the afternoon. Wave Detail: E 5 ft at 9 seconds, becoming
E 4 ft at 9 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...NE winds 5 kt, becoming SE in the afternoon. 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...SW winds 10 to 15 kt. Seas 3 to 4 ft.
.SUN NIGHT...SW winds 15 to 20 kt. Seas 4 to 5 ft. A slight
chance of showers.
.MON...N winds 10 to 15 kt. Seas 4 to 5 ft.
.MON NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft.

$$

AMZ352-161800-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
129 AM EDT Thu Oct 16 2025

.REST OF TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: E 3 ft at 9 seconds.
.THU...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 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, diminishing to 5 to 10 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds.
.FRI NIGHT...E 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...SW 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...N winds 10 to 15 kt. Seas 3 to 4 ft.
.MON NIGHT...E winds 5 to 10 kt. Seas 2 ft.

$$

AMZ354-161800-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
129 AM EDT Thu Oct 16 2025

.REST OF TONIGHT...NE winds 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 8 seconds.
.THU...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 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 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 to 10 kt. Seas 3 to 4 ft, subsiding to 2 to 3 ft
in the afternoon. Wave Detail: E 3 ft at 9 seconds.
.SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft.
.SUN...SW 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...SE winds 5 to 10 kt. Seas 2 to 3 ft.

$$

AMZ374-161800-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
129 AM EDT Thu Oct 16 2025

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

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

$$