FZUS52 KCHS 272320
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
620 PM EST Sat Dec 27 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
AMZ300-281200-
620 PM EST Sat Dec 27 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through this weekend. A cold front
will move through the area Monday bringing below normal
temperatures to the area Tuesday and Wednesday. Temperatures will
then trend warmer through the remainder of the work week.
$$
AMZ330-281200-
Charleston Harbor-
620 PM EST Sat Dec 27 2025
.TONIGHT...Variable winds 5 kt.
.SUN...E winds 5 to 10 kt.
.SUN NIGHT...SW winds 5 to 10 kt.
.MON...SW winds 10 to 15 kt with gusts to 20 kt.
.MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt.
.TUE...NW winds 5 to 10 kt.
.TUE NIGHT...NW winds 5 kt.
.WED...W winds 5 to 10 kt.
.WED NIGHT...W winds 5 to 10 kt.
.THU...W winds 10 kt.
.THU NIGHT...W winds 10 kt.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 57 degrees.
$$
AMZ350-281200-
Waters from South Santee River to Edisto Beach SC out 20 NM-
620 PM EST Sat Dec 27 2025
.TONIGHT...S winds 5 kt, becoming E late this evening. Seas 2 to
3 ft. Wave Detail: SW 2 ft at 5 seconds and E 2 ft at 10 seconds.
.SUN...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
10 seconds and S 1 foot at 4 seconds.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with
gusts to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 4 seconds and E 3 ft at 9 seconds.
.MON...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Seas 4 to 5 ft, building to 4 to 6 ft in the
afternoon. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at
11 seconds, becoming SW 5 ft at 6 seconds and E 2 ft at
11 seconds. A slight chance of rain in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt. Seas 4 to 6 ft, subsiding to
4 to 5 ft after midnight. Wave Detail: SW 5 ft at 7 seconds and E
1 foot at 11 seconds, becoming NW 5 ft at 6 seconds and E 1 foot
at 11 seconds.
.TUE...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon. Wave Detail: NW 4 ft at 5 seconds and E 1 foot at
11 seconds, becoming NW 2 ft at 4 seconds and NE 1 foot at
7 seconds.
.TUE NIGHT...NW winds 10 kt. Seas 2 ft.
.WED...NW winds 5 to 10 kt. Seas 1 foot or less.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 ft.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft.
$$
AMZ352-281200-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
620 PM EST Sat Dec 27 2025
.TONIGHT...SW winds 5 kt, becoming E after midnight. Seas 2 to
3 ft. Wave Detail: E 2 ft at 10 seconds and SW 1 foot at
4 seconds.
.SUN...E winds 5 kt. Seas 2 ft. Wave Detail: E 2 ft at 10 seconds
and SW 1 foot at 3 seconds.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E
2 ft at 9 seconds.
.MON...SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft.
Wave Detail: SW 4 ft at 5 seconds and E 2 ft at 9 seconds. A
chance of rain in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt. Seas 4 to 5 ft. Wave Detail: W
4 ft at 5 seconds and E 2 ft at 11 seconds.
.TUE...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon. Wave Detail: NW 4 ft at 4 seconds and E 1 foot at
10 seconds, becoming NW 2 ft at 4 seconds and NE 1 foot at
8 seconds.
.TUE NIGHT...NW winds 10 kt. Seas 2 ft.
.WED...NW winds 5 to 10 kt. Seas 2 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 ft.
.THU...W winds 10 to 15 kt. Seas 2 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
$$
AMZ354-281200-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
620 PM EST Sat Dec 27 2025
.TONIGHT...SW winds 5 to 10 kt, becoming NW late. Seas 2 ft. Wave
Detail: E 2 ft at 12 seconds and SW 1 foot at 3 seconds.
.SUN...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
11 seconds and SW 1 foot at 3 seconds.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after
midnight. Seas 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft
at 11 seconds.
.MON...SW 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: SW 3 ft at 4 seconds and E 2 ft at
10 seconds. A chance of rain in the afternoon.
.MON NIGHT...W winds 15 to 20 kt, becoming NW 20 to 25 kt after
midnight. Seas 3 to 4 ft, building to 4 to 5 ft after midnight.
Wave Detail: W 4 ft at 4 seconds and E 2 ft at 11 seconds,
becoming NW 4 ft at 4 seconds and E 2 ft at 11 seconds.
.TUE...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon. Wave Detail: NW 4 ft at 4 seconds and E 1 foot at
11 seconds, becoming NW 3 ft at 4 seconds and NE 2 ft at
10 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft.
.WED...NW winds 10 kt. Seas 2 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 ft.
.THU...W winds 10 to 15 kt. Seas 2 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 ft.
$$
AMZ374-281200-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
620 PM EST Sat Dec 27 2025
.TONIGHT...W winds 5 to 10 kt, becoming NW late. Seas 3 to 4 ft,
subsiding to 2 to 3 ft after midnight. Wave Detail: E 3 ft at
11 seconds and SW 2 ft at 4 seconds, becoming E 3 ft at
11 seconds and SW 1 foot at 3 seconds.
.SUN...NE winds 5 kt, becoming SW in the afternoon. Seas 2 to
3 ft. Wave Detail: E 3 ft at 11 seconds and SW 1 foot at
3 seconds.
.SUN NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to
4 ft after midnight. Wave Detail: E 2 ft at 10 seconds and SW
1 foot at 3 seconds, becoming SW 3 ft at 4 seconds and E 3 ft at
10 seconds.
.MON...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft,
building to 4 to 6 ft in the afternoon. Wave Detail: SW 4 ft at
5 seconds and E 3 ft at 10 seconds, becoming SW 5 ft at 5 seconds
and E 3 ft at 12 seconds. A chance of rain in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Seas 4 to
6 ft, building to 5 to 7 ft after midnight. Wave Detail: W 6 ft
at 5 seconds and E 3 ft at 11 seconds, becoming NW 6 ft at
5 seconds and E 2 ft at 11 seconds. A slight chance of rain in
the evening.
.TUE...NW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft,
subsiding to 4 to 5 ft in the afternoon. Wave Detail: NW 6 ft at
5 seconds and E 2 ft at 11 seconds, becoming NW 4 ft at 5 seconds
and E 1 foot at 11 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight.
.WED...NW winds 10 to 15 kt. Seas 2 to 3 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU...W winds 15 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
620 PM EST Sat Dec 27 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
AMZ300-281200-
620 PM EST Sat Dec 27 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
High pressure will prevail through this weekend. A cold front
will move through the area Monday bringing below normal
temperatures to the area Tuesday and Wednesday. Temperatures will
then trend warmer through the remainder of the work week.
$$
AMZ330-281200-
Charleston Harbor-
620 PM EST Sat Dec 27 2025
.TONIGHT...Variable winds 5 kt.
.SUN...E winds 5 to 10 kt.
.SUN NIGHT...SW winds 5 to 10 kt.
.MON...SW winds 10 to 15 kt with gusts to 20 kt.
.MON NIGHT...NW winds 10 to 15 kt with gusts to 20 kt.
.TUE...NW winds 5 to 10 kt.
.TUE NIGHT...NW winds 5 kt.
.WED...W winds 5 to 10 kt.
.WED NIGHT...W winds 5 to 10 kt.
.THU...W winds 10 kt.
.THU NIGHT...W winds 10 kt.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 57 degrees.
$$
AMZ350-281200-
Waters from South Santee River to Edisto Beach SC out 20 NM-
620 PM EST Sat Dec 27 2025
.TONIGHT...S winds 5 kt, becoming E late this evening. Seas 2 to
3 ft. Wave Detail: SW 2 ft at 5 seconds and E 2 ft at 10 seconds.
.SUN...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at
10 seconds and S 1 foot at 4 seconds.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt with
gusts to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW
3 ft at 4 seconds and E 3 ft at 9 seconds.
.MON...SW winds 15 to 20 kt, increasing to 20 to 25 kt in the
afternoon. Seas 4 to 5 ft, building to 4 to 6 ft in the
afternoon. Wave Detail: SW 4 ft at 5 seconds and E 2 ft at
11 seconds, becoming SW 5 ft at 6 seconds and E 2 ft at
11 seconds. A slight chance of rain in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt. Seas 4 to 6 ft, subsiding to
4 to 5 ft after midnight. Wave Detail: SW 5 ft at 7 seconds and E
1 foot at 11 seconds, becoming NW 5 ft at 6 seconds and E 1 foot
at 11 seconds.
.TUE...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon. Wave Detail: NW 4 ft at 5 seconds and E 1 foot at
11 seconds, becoming NW 2 ft at 4 seconds and NE 1 foot at
7 seconds.
.TUE NIGHT...NW winds 10 kt. Seas 2 ft.
.WED...NW winds 5 to 10 kt. Seas 1 foot or less.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 ft.
.THU...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft.
$$
AMZ352-281200-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
620 PM EST Sat Dec 27 2025
.TONIGHT...SW winds 5 kt, becoming E after midnight. Seas 2 to
3 ft. Wave Detail: E 2 ft at 10 seconds and SW 1 foot at
4 seconds.
.SUN...E winds 5 kt. Seas 2 ft. Wave Detail: E 2 ft at 10 seconds
and SW 1 foot at 3 seconds.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E
2 ft at 9 seconds.
.MON...SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft.
Wave Detail: SW 4 ft at 5 seconds and E 2 ft at 9 seconds. A
chance of rain in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt. Seas 4 to 5 ft. Wave Detail: W
4 ft at 5 seconds and E 2 ft at 11 seconds.
.TUE...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon. Wave Detail: NW 4 ft at 4 seconds and E 1 foot at
10 seconds, becoming NW 2 ft at 4 seconds and NE 1 foot at
8 seconds.
.TUE NIGHT...NW winds 10 kt. Seas 2 ft.
.WED...NW winds 5 to 10 kt. Seas 2 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 ft.
.THU...W winds 10 to 15 kt. Seas 2 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
$$
AMZ354-281200-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
620 PM EST Sat Dec 27 2025
.TONIGHT...SW winds 5 to 10 kt, becoming NW late. Seas 2 ft. Wave
Detail: E 2 ft at 12 seconds and SW 1 foot at 3 seconds.
.SUN...SE winds 5 to 10 kt. Seas 2 ft. Wave Detail: E 2 ft at
11 seconds and SW 1 foot at 3 seconds.
.SUN NIGHT...S winds 5 to 10 kt, becoming SW 10 to 15 kt after
midnight. Seas 2 ft. Wave Detail: SW 2 ft at 3 seconds and E 2 ft
at 11 seconds.
.MON...SW 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: SW 3 ft at 4 seconds and E 2 ft at
10 seconds. A chance of rain in the afternoon.
.MON NIGHT...W winds 15 to 20 kt, becoming NW 20 to 25 kt after
midnight. Seas 3 to 4 ft, building to 4 to 5 ft after midnight.
Wave Detail: W 4 ft at 4 seconds and E 2 ft at 11 seconds,
becoming NW 4 ft at 4 seconds and E 2 ft at 11 seconds.
.TUE...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 3 to 4 ft, subsiding to 2 to 3 ft in the
afternoon. Wave Detail: NW 4 ft at 4 seconds and E 1 foot at
11 seconds, becoming NW 3 ft at 4 seconds and NE 2 ft at
10 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft.
.WED...NW winds 10 kt. Seas 2 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 ft.
.THU...W winds 10 to 15 kt. Seas 2 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 ft.
$$
AMZ374-281200-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
620 PM EST Sat Dec 27 2025
.TONIGHT...W winds 5 to 10 kt, becoming NW late. Seas 3 to 4 ft,
subsiding to 2 to 3 ft after midnight. Wave Detail: E 3 ft at
11 seconds and SW 2 ft at 4 seconds, becoming E 3 ft at
11 seconds and SW 1 foot at 3 seconds.
.SUN...NE winds 5 kt, becoming SW in the afternoon. Seas 2 to
3 ft. Wave Detail: E 3 ft at 11 seconds and SW 1 foot at
3 seconds.
.SUN NIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to
4 ft after midnight. Wave Detail: E 2 ft at 10 seconds and SW
1 foot at 3 seconds, becoming SW 3 ft at 4 seconds and E 3 ft at
10 seconds.
.MON...SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft,
building to 4 to 6 ft in the afternoon. Wave Detail: SW 4 ft at
5 seconds and E 3 ft at 10 seconds, becoming SW 5 ft at 5 seconds
and E 3 ft at 12 seconds. A chance of rain in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Seas 4 to
6 ft, building to 5 to 7 ft after midnight. Wave Detail: W 6 ft
at 5 seconds and E 3 ft at 11 seconds, becoming NW 6 ft at
5 seconds and E 2 ft at 11 seconds. A slight chance of rain in
the evening.
.TUE...NW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft,
subsiding to 4 to 5 ft in the afternoon. Wave Detail: NW 6 ft at
5 seconds and E 2 ft at 11 seconds, becoming NW 4 ft at 5 seconds
and E 1 foot at 11 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to
2 to 3 ft after midnight.
.WED...NW winds 10 to 15 kt. Seas 2 to 3 ft.
.WED NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.THU...W winds 15 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft.
$$