FZUS52 KCHS 290544
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
1244 AM EST Mon Dec 29 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
AMZ300-291830-
1244 AM EST Mon Dec 29 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A strong cold front will push offshore this afternoon. High
pressure will then prevail for the remainder of the week. Another
cold front could affect the area next weekend.
$$
AMZ330-291830-
Charleston Harbor-
1244 AM EST Mon Dec 29 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
.REST OF TONIGHT...SW winds 5 to 10 kt, increasing to 10 kt. Patchy
fog.
.MON...SW winds 10 to 15 kt with gusts to 20 kt, becoming W 15 to
20 kt with gusts to 25 kt. Waves building 1 to 2 ft. A chance of
showers in the afternoon.
.MON NIGHT...NW winds 20 kt with gusts to 30 kt, diminishing to
15 kt after midnight. Waves 2 ft in the evening.
.TUE...NW winds 5 to 10 kt.
.TUE NIGHT...NW winds 5 kt.
.WED...W winds 5 to 10 kt.
.WED NIGHT...W winds 10 to 15 kt.
.THU...W winds 10 kt.
.THU NIGHT...W winds 5 to 10 kt.
.FRI...W winds 5 to 10 kt.
.FRI NIGHT...SW winds 5 kt. A chance of showers.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 57 degrees.
$$
AMZ350-291830-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1244 AM EST Mon Dec 29 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST THIS MORNING
THROUGH LATE TONIGHT...
.REST OF TONIGHT...SW winds 5 to 10 kt, increasing to 10 to
15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2
ft at 7 seconds. Patchy fog.
.MON...SW winds 20 to 25 kt with gusts to 30 kt. Seas 2 to 4 ft,
building to 4 to 6 ft. Wave Detail: SW 4 ft at 5 seconds and E 2
ft at 5 seconds, becoming SW 6 ft at 6 seconds and E 2 ft at 11
seconds. Patchy fog in the morning. A chance of showers in the
afternoon.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt, diminishing
to 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft, subsiding to
2 to 4 ft. Wave Detail: SW 5 ft at 7 seconds and E 1 foot at 11
seconds, becoming NW 4 ft at 6 seconds and E 1 foot at 11 seconds.
.TUE...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft
at 4 seconds and E 1 foot at 11 seconds.
.TUE NIGHT...NW winds 10 kt. Seas 1 to 2 ft. Wave Detail: N 1
foot at 4 seconds and E 1 foot at 11 seconds.
.WED...W winds 10 to 15 kt. Seas 1 to 2 ft. Wave Detail: W 1 foot
at 3 seconds and NE 1 foot at 5 seconds.
.WED NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Seas 2 to
3 ft, building to 3 to 4 ft after midnight.
.THU...W winds 15 to 20 kt. Seas 3 to 4 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 1 to 2 ft. A chance of
showers.
$$
AMZ352-291830-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1244 AM EST Mon Dec 29 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
.REST OF TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8
seconds. Patchy fog.
.MON...SW winds 15 to 20 kt with gusts to 25 kt, becoming W 20 to
25 kt with gusts to 30 kt. Seas 2 to 4 ft, building to 3 to 5 ft.
Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds,
becoming SW 4 ft at 5 seconds and E 2 ft at 8 seconds. A chance of
showers in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt, diminishing
to 15 to 20 kt with gusts to 25 kt. Seas 3 to 5 ft, subsiding to
2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and E 2 ft at 11
seconds, becoming NW 4 ft at 4 seconds and E 1 foot at 11 seconds.
.TUE...NW winds 10 to 15 kt with gusts to 20 kt, diminishing to
5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft
at 4 seconds and E 1 foot at 11 seconds.
.TUE NIGHT...NW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: N
1 foot at 3 seconds and E 1 foot at 11 seconds.
.WED...W winds 10 to 15 kt. Seas 1 to 2 ft. Wave Detail: N 1 foot
at 3 seconds and E 1 foot at 10 seconds.
.WED NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft.
.THU...W winds 15 to 20 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI...W winds 10 kt. Seas 1 to 2 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 1 to 2 ft. A chance of
showers.
$$
AMZ354-291830-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1244 AM EST Mon Dec 29 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
.REST OF TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SW 2 ft at 3 seconds and E 1 foot at 11 seconds. Patchy
fog.
.MON...SW winds 15 to 20 kt with gusts to 25 kt, becoming W 20 to
25 kt with gusts to 30 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft
at 4 seconds and E 2 ft at 8 seconds. A chance of showers in the
afternoon.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt, diminishing
to 15 to 20 kt with gusts to 25 kt. Seas 2 to 4 ft. Wave Detail:
W 4 ft at 4 seconds and E 2 ft at 12 seconds.
.TUE...NW winds 15 to 20 kt with gusts to 25 kt, diminishing to
10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft
at 4 seconds and E 2 ft at 11 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 1 to 2 ft. Wave Detail: N
2 ft at 3 seconds and E 1 foot at 11 seconds.
.WED...W winds 10 to 15 kt. Seas 1 to 2 ft. Wave Detail: N 2 ft
at 3 seconds and E 1 foot at 11 seconds.
.WED NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft.
.THU...W winds 15 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 1 to 2 ft.
.FRI...SW winds 10 kt. Seas 1 to 2 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 1 to 2 ft. A chance of
showers.
$$
AMZ374-291830-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1244 AM EST Mon Dec 29 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST THIS MORNING
THROUGH TUESDAY AFTERNOON...
.REST OF TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave
Detail: SW 3 ft at 4 seconds and E 3 ft at 8 seconds. Patchy fog.
.MON...SW winds 15 to 20 kt with gust to 25 kt, becoming W 20 to
25 kt with gusts to 30 kt. Seas 3 to 5 ft, building to 4 to 6 ft.
Wave Detail: SW 5 ft at 5 seconds and E 3 ft at 8 seconds. A
chance of showers in the afternoon.
.MON NIGHT...NW winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Seas 5 to 7 ft, subsiding to 4 to 6 ft. Wave
Detail: W 6 ft at 5 seconds and E 3 ft at 11 seconds, becoming NW
6 ft at 5 seconds and E 2 ft at 11 seconds.
.TUE...NW winds 15 to 20 kt with gusts to 25 kt, diminishing to
10 to 15 kt in the afternoon. Seas 4 to 5 ft, subsiding to 3 to
4 ft. Wave Detail: NW 5 ft at 5 seconds and E 2 ft at 11 seconds,
becoming NW 4 ft at 5 seconds and E 2 ft at 11 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N
3 ft at 4 seconds and E 1 foot at 11 seconds.
.WED...W winds 15 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at
5 seconds and E 1 foot at 11 seconds.
.WED NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight.
.THU...W winds 15 to 20 kt. Seas 4 to 5 ft.
.THU NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft.
.FRI...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. A chance of
showers.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
1244 AM EST Mon Dec 29 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
AMZ300-291830-
1244 AM EST Mon Dec 29 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A strong cold front will push offshore this afternoon. High
pressure will then prevail for the remainder of the week. Another
cold front could affect the area next weekend.
$$
AMZ330-291830-
Charleston Harbor-
1244 AM EST Mon Dec 29 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
.REST OF TONIGHT...SW winds 5 to 10 kt, increasing to 10 kt. Patchy
fog.
.MON...SW winds 10 to 15 kt with gusts to 20 kt, becoming W 15 to
20 kt with gusts to 25 kt. Waves building 1 to 2 ft. A chance of
showers in the afternoon.
.MON NIGHT...NW winds 20 kt with gusts to 30 kt, diminishing to
15 kt after midnight. Waves 2 ft in the evening.
.TUE...NW winds 5 to 10 kt.
.TUE NIGHT...NW winds 5 kt.
.WED...W winds 5 to 10 kt.
.WED NIGHT...W winds 10 to 15 kt.
.THU...W winds 10 kt.
.THU NIGHT...W winds 5 to 10 kt.
.FRI...W winds 5 to 10 kt.
.FRI NIGHT...SW winds 5 kt. A chance of showers.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 57 degrees.
$$
AMZ350-291830-
Waters from South Santee River to Edisto Beach SC out 20 NM-
1244 AM EST Mon Dec 29 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST THIS MORNING
THROUGH LATE TONIGHT...
.REST OF TONIGHT...SW winds 5 to 10 kt, increasing to 10 to
15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2
ft at 7 seconds. Patchy fog.
.MON...SW winds 20 to 25 kt with gusts to 30 kt. Seas 2 to 4 ft,
building to 4 to 6 ft. Wave Detail: SW 4 ft at 5 seconds and E 2
ft at 5 seconds, becoming SW 6 ft at 6 seconds and E 2 ft at 11
seconds. Patchy fog in the morning. A chance of showers in the
afternoon.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt, diminishing
to 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft, subsiding to
2 to 4 ft. Wave Detail: SW 5 ft at 7 seconds and E 1 foot at 11
seconds, becoming NW 4 ft at 6 seconds and E 1 foot at 11 seconds.
.TUE...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 3 ft
at 4 seconds and E 1 foot at 11 seconds.
.TUE NIGHT...NW winds 10 kt. Seas 1 to 2 ft. Wave Detail: N 1
foot at 4 seconds and E 1 foot at 11 seconds.
.WED...W winds 10 to 15 kt. Seas 1 to 2 ft. Wave Detail: W 1 foot
at 3 seconds and NE 1 foot at 5 seconds.
.WED NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Seas 2 to
3 ft, building to 3 to 4 ft after midnight.
.THU...W winds 15 to 20 kt. Seas 3 to 4 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 1 to 2 ft. A chance of
showers.
$$
AMZ352-291830-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
1244 AM EST Mon Dec 29 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
.REST OF TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt.
Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 2 ft at 8
seconds. Patchy fog.
.MON...SW winds 15 to 20 kt with gusts to 25 kt, becoming W 20 to
25 kt with gusts to 30 kt. Seas 2 to 4 ft, building to 3 to 5 ft.
Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds,
becoming SW 4 ft at 5 seconds and E 2 ft at 8 seconds. A chance of
showers in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt, diminishing
to 15 to 20 kt with gusts to 25 kt. Seas 3 to 5 ft, subsiding to
2 to 4 ft. Wave Detail: W 4 ft at 5 seconds and E 2 ft at 11
seconds, becoming NW 4 ft at 4 seconds and E 1 foot at 11 seconds.
.TUE...NW winds 10 to 15 kt with gusts to 20 kt, diminishing to
5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NW 3 ft
at 4 seconds and E 1 foot at 11 seconds.
.TUE NIGHT...NW winds 5 to 10 kt. Seas 1 to 2 ft. Wave Detail: N
1 foot at 3 seconds and E 1 foot at 11 seconds.
.WED...W winds 10 to 15 kt. Seas 1 to 2 ft. Wave Detail: N 1 foot
at 3 seconds and E 1 foot at 10 seconds.
.WED NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft.
.THU...W winds 15 to 20 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI...W winds 10 kt. Seas 1 to 2 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 1 to 2 ft. A chance of
showers.
$$
AMZ354-291830-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
1244 AM EST Mon Dec 29 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
.REST OF TONIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave
Detail: SW 2 ft at 3 seconds and E 1 foot at 11 seconds. Patchy
fog.
.MON...SW winds 15 to 20 kt with gusts to 25 kt, becoming W 20 to
25 kt with gusts to 30 kt. Seas 2 to 4 ft. Wave Detail: SW 3 ft
at 4 seconds and E 2 ft at 8 seconds. A chance of showers in the
afternoon.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt, diminishing
to 15 to 20 kt with gusts to 25 kt. Seas 2 to 4 ft. Wave Detail:
W 4 ft at 4 seconds and E 2 ft at 12 seconds.
.TUE...NW winds 15 to 20 kt with gusts to 25 kt, diminishing to
10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft
at 4 seconds and E 2 ft at 11 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 1 to 2 ft. Wave Detail: N
2 ft at 3 seconds and E 1 foot at 11 seconds.
.WED...W winds 10 to 15 kt. Seas 1 to 2 ft. Wave Detail: N 2 ft
at 3 seconds and E 1 foot at 11 seconds.
.WED NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft.
.THU...W winds 15 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 1 to 2 ft.
.FRI...SW winds 10 kt. Seas 1 to 2 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 1 to 2 ft. A chance of
showers.
$$
AMZ374-291830-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1244 AM EST Mon Dec 29 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST THIS MORNING
THROUGH TUESDAY AFTERNOON...
.REST OF TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. Wave
Detail: SW 3 ft at 4 seconds and E 3 ft at 8 seconds. Patchy fog.
.MON...SW winds 15 to 20 kt with gust to 25 kt, becoming W 20 to
25 kt with gusts to 30 kt. Seas 3 to 5 ft, building to 4 to 6 ft.
Wave Detail: SW 5 ft at 5 seconds and E 3 ft at 8 seconds. A
chance of showers in the afternoon.
.MON NIGHT...NW winds 25 to 30 kt, diminishing to 20 to 25 kt
after midnight. Seas 5 to 7 ft, subsiding to 4 to 6 ft. Wave
Detail: W 6 ft at 5 seconds and E 3 ft at 11 seconds, becoming NW
6 ft at 5 seconds and E 2 ft at 11 seconds.
.TUE...NW winds 15 to 20 kt with gusts to 25 kt, diminishing to
10 to 15 kt in the afternoon. Seas 4 to 5 ft, subsiding to 3 to
4 ft. Wave Detail: NW 5 ft at 5 seconds and E 2 ft at 11 seconds,
becoming NW 4 ft at 5 seconds and E 2 ft at 11 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N
3 ft at 4 seconds and E 1 foot at 11 seconds.
.WED...W winds 15 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft at
5 seconds and E 1 foot at 11 seconds.
.WED NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft, building to 4 to 5 ft after midnight.
.THU...W winds 15 to 20 kt. Seas 4 to 5 ft.
.THU NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft.
.FRI...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. A chance of
showers.
$$