242
FZUS52 KCHS 251716
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
116 PM EDT Wed Jun 25 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

AMZ300-260615-
116 PM EDT Wed Jun 25 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
Hot and humid conditions are expected to continue with rain
chances increasing today into late week as surface troughing
begins to form near the region and a few upper disturbances pass
through. A few thunderstorms may become strong to severe on
Wednesday.

$$

AMZ330-260615-
Charleston Harbor-
116 PM EDT Wed Jun 25 2025

.THIS AFTERNOON...S winds 10 to 15 kt.
.TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. A slight chance of showers and tstms in the evening,
then a chance of showers and tstms after midnight.
.THU...W winds 5 kt, becoming S in the afternoon. A chance of
showers and tstms.
.THU NIGHT...S winds 5 to 10 kt. A slight chance of showers and
tstms.
.FRI...SW winds 5 kt, becoming S in the afternoon. A slight
chance of showers and tstms in the afternoon.
.FRI NIGHT...SW winds 5 to 10 kt. A slight chance of showers and
tstms.
.SAT...SW winds 10 to 15 kt. A slight chance of showers and
tstms.
.SAT NIGHT...SW winds 5 to 10 kt. A slight chance of showers and
tstms.
.SUN...SW winds 10 to 15 kt. A chance of showers and tstms.
.SUN NIGHT...S winds 10 to 15 kt. A slight chance of showers and
tstms.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 85 degrees.

$$

AMZ350-260615-
Waters from South Santee River to Edisto Beach SC out 20 NM-
116 PM EDT Wed Jun 25 2025

.THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE
2 ft at 8 seconds and SW 1 foot at 3 seconds.
.TONIGHT...SW winds 10 to 15 kt, diminishing to 5 to 10 kt after
midnight. Seas 2 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft
at 9 seconds. A slight chance of showers and tstms after
midnight.
.THU...W winds 5 to 10 kt, becoming S in the afternoon. Seas
2 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 9 seconds.
A chance of showers and tstms.
.THU NIGHT...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft
at 4 seconds and SE 2 ft at 9 seconds. A slight chance of showers
and tstms.
.FRI...SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 9 seconds. A slight chance of showers
and tstms.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds and S 2 ft at 5 seconds. A slight chance of
showers and tstms.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ352-260615-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
116 PM EDT Wed Jun 25 2025

.THIS AFTERNOON...S winds 5 to 10 kt, increasing to 10 to 15 kt
late. Seas 2 ft. Wave Detail: SE 2 ft at 7 seconds and S 1 foot
at 3 seconds.
.TONIGHT...SW winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft
at 4 seconds and SE 2 ft at 8 seconds. A slight chance of showers
and tstms after midnight.
.THU...SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 8 seconds.
A chance of showers and tstms.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 9 seconds. A slight chance of showers and tstms.
.FRI...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
5 seconds and SE 2 ft at 9 seconds. A slight chance of showers
and tstms.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds and S 2 ft at 5 seconds. A chance of showers
and tstms.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of
showers and tstms.
.SAT NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ354-260615-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
116 PM EDT Wed Jun 25 2025

.THIS AFTERNOON...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S
2 ft at 3 seconds and SE 2 ft at 8 seconds.
.TONIGHT...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 8 seconds. A slight chance of showers
and tstms after midnight.
.THU...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 9 seconds. A slight chance of showers
and tstms in the morning, then a chance of showers and tstms in
the afternoon.
.THU NIGHT...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft
at 9 seconds. A chance of showers and tstms.
.FRI...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at
5 seconds and SE 2 ft at 9 seconds. A slight chance of showers
and tstms in the morning, then a chance of showers and tstms in
the afternoon.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 9 seconds and SE 2 ft at 5 seconds. A chance of showers
and tstms.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.
.SUN...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers and tstms.

Winds and seas higher in and near tstms.

$$

AMZ374-260615-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
116 PM EDT Wed Jun 25 2025

.THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE
2 ft at 8 seconds and SW 1 foot at 3 seconds.
.TONIGHT...S winds 10 to 15 kt. Seas 2 ft. Wave Detail: S 2 ft at
3 seconds and SE 2 ft at 9 seconds. A slight chance of showers
and tstms after midnight.
.THU...S winds 5 to 10 kt. Seas 2 ft. Wave Detail: S 2 ft at
4 seconds and SE 2 ft at 9 seconds. A chance of showers and
tstms.
.THU NIGHT...S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds. A chance of showers and tstms.
.FRI...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds and SE 2 ft at 5 seconds. A chance of showers and
tstms.
.FRI NIGHT...SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft
at 9 seconds. A chance of showers and tstms.
.SAT...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SAT NIGHT...SW winds 10 kt. Seas 3 ft. A chance of showers and
tstms.
.SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers
and tstms.
.SUN NIGHT...S winds 10 to 15 kt. Seas 3 ft. A chance of showers
and tstms.

Winds and seas higher in and near tstms.

$$