762
FZUS52 KCHS 061120
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
620 AM EST Sat Dec 6 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

AMZ300-070000-
620 AM EST Sat Dec 6 2025

.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A frontal system will maintain unsettled weather through early
next week, then cold high pressure will build in. A reinforcing
cold front will move through late next week.

$$

AMZ330-070000-
Charleston Harbor-
620 AM EST Sat Dec 6 2025

.TODAY...NW winds 5 to 10 kt. Patchy fog early this morning. A
chance of showers early this morning, then showers late this
morning. Vsby 1 to 3 NM early this afternoon.
.TONIGHT...W winds 5 kt, becoming N after midnight. A chance of
showers in the evening.
.SUN...N winds 5 to 10 kt. A slight chance of showers in the
morning, then a chance of showers in the afternoon.
.SUN NIGHT...N winds 5 to 10 kt. A slight chance of showers in
the evening, then a chance of showers after midnight.
.MON...N winds 10 to 15 kt. A chance of showers, mainly in the
morning.
.MON NIGHT...N winds 15 kt with gusts to 20 kt.
.TUE...N winds 5 to 10 kt.
.TUE NIGHT...NW winds 5 kt.
.WED...W winds 10 to 15 kt.
.WED NIGHT...W winds 10 to 15 kt.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 58 degrees.

$$

AMZ350-070000-
Waters from South Santee River to Edisto Beach SC out 20 NM-
620 AM EST Sat Dec 6 2025

.TODAY...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 6 seconds and SE 2 ft at 10 seconds. A chance of showers early
this morning, then showers late this morning. Vsby 1 to 3 NM this
afternoon.
.TONIGHT...NW winds 5 to 10 kt, becoming N after midnight. Seas
2 to 3 ft. Wave Detail: E 2 ft at 10 seconds and NE 1 foot at
4 seconds. Showers likely, mainly in the evening. Vsby 1 to 3 NM
after midnight.
.SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 9 seconds and S 1 foot at 5 seconds. A slight chance of
showers in the morning, then a chance of showers in the
afternoon.
.SUN NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 9 seconds. A chance of showers.
.MON...N winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 4 ft, building to 4 to 5 ft in the
afternoon. Wave Detail: NE 3 ft at 4 seconds and SE 2 ft at
9 seconds, becoming NE 4 ft at 5 seconds and SE 2 ft at
9 seconds. A chance of showers.
.MON NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
6 ft, building to 5 to 7 ft after midnight. Wave Detail: NE 5 ft
at 6 seconds and SE 2 ft at 9 seconds, becoming E 6 ft at
9 seconds.
.TUE...N winds 10 to 15 kt. Seas 4 to 6 ft.
.TUE NIGHT...NW winds 5 kt. Seas 3 to 4 ft.
.WED...W winds 10 to 15 kt. Seas 3 to 4 ft.
.WED NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft.

$$

AMZ352-070000-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
620 AM EST Sat Dec 6 2025

.TODAY...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft
at 5 seconds and E 2 ft at 10 seconds. A chance of showers this
morning, then showers this afternoon with vsby 1 to 3 NM.
.TONIGHT...NW winds 5 kt. Seas 2 ft. Wave Detail: SE 2 ft at
10 seconds and NE 1 foot at 4 seconds. Showers likely, mainly in
the evening. Vsby 1 to 3 NM after midnight.
.SUN...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
9 seconds. A chance of showers.
.SUN NIGHT...N winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft
at 9 seconds. A chance of showers.
.MON...N winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to 4 ft
in the afternoon. Wave Detail: NE 2 ft at 3 seconds and E 2 ft at
9 seconds, becoming NE 3 ft at 4 seconds and E 2 ft at 9 seconds.
A chance of showers, mainly in the morning.
.MON NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft, building to
4 to 5 ft after midnight. Wave Detail: NE 4 ft at 5 seconds and
SE 2 ft at 9 seconds.
.TUE...N winds 10 to 15 kt. Seas 4 to 5 ft.
.TUE NIGHT...N winds 5 kt. Seas 3 to 4 ft.
.WED...W winds 5 to 10 kt. Seas 3 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft.

$$

AMZ354-070000-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
620 AM EST Sat Dec 6 2025

.TODAY...NW winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
10 seconds and NW 1 foot at 2 seconds. A slight chance of showers
early this morning, then a chance of showers late this morning
and early afternoon. Showers late with vsby 1 to 3 NM.
.TONIGHT...N winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
10 seconds and NW 1 foot at 2 seconds. Showers likely, mainly in
the evening. Vsby 1 to 3 NM.
.SUN...NE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
10 seconds. A chance of showers in the morning, then showers
likely in the afternoon.
.SUN NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
2 ft at 9 seconds. A chance of showers.
.MON...N winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 2 to 3 ft, building to 3 to 4 ft in the
afternoon. Wave Detail: NE 2 ft at 3 seconds and E 2 ft at
9 seconds, becoming NE 2 ft at 4 seconds and E 2 ft at 9 seconds.
A chance of showers, mainly in the morning.
.MON NIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: NE
4 ft at 5 seconds and E 2 ft at 9 seconds.
.TUE...NE winds 15 to 20 kt. Seas 3 to 4 ft.
.TUE NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft.
.WED...W winds 5 to 10 kt. Seas 3 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft.

$$

AMZ374-070000-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
620 AM EST Sat Dec 6 2025

.TODAY...NW winds 5 to 10 kt, increasing to 10 to 15 kt late.
Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and E 2 ft at
10 seconds. A slight chance of showers early this morning, then a
chance of showers late this morning and early afternoon. Showers
late with vsby 1 to 3 NM.
.TONIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E
3 ft at 10 seconds and NW 2 ft at 3 seconds. Showers, mainly in
the evening. Vsby 1 to 3 NM.
.SUN...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft
at 9 seconds. Showers likely.
.SUN NIGHT...N winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 3 ft. Wave Detail: E 3 ft at 9 seconds. A chance
of showers.
.MON...N winds 10 to 15 kt, increasing to 15 to 20 kt in the
afternoon. Seas 3 to 4 ft, building to 4 to 5 ft in the
afternoon. Wave Detail: E 3 ft at 9 seconds and NE 2 ft at
4 seconds, becoming NE 3 ft at 4 seconds and E 3 ft at 9 seconds.
A chance of showers, mainly in the morning.
.MON NIGHT...N winds 15 to 20 kt with gusts to 25 kt. Seas 4 to
6 ft, building to 5 to 6 ft after midnight. Wave Detail: NE 5 ft
at 5 seconds and SE 2 ft at 9 seconds, becoming NE 5 ft at
6 seconds and E 2 ft at 9 seconds.
.TUE...N winds 15 to 20 kt. Seas 4 to 6 ft.
.TUE NIGHT...N winds 5 to 10 kt. Seas 4 to 5 ft.
.WED...W winds 5 to 10 kt. Seas 4 to 5 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 4 to 6 ft.

$$