FZUS52 KCHS 282320
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
620 PM EST Sun Dec 28 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
AMZ300-291200-
620 PM EST Sun Dec 28 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A warm front will lift north later today, then a cold front will
move through Monday afternoon. High pressure will build in
through late week, then a cold front could affect the area next
weekend.
$$
AMZ330-291200-
Charleston Harbor-
620 PM EST Sun Dec 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...
.TONIGHT...SW winds 5 to 10 kt, becoming 10 kt late. Patchy fog
late.
.MON...SW winds 10 to 15 kt, becoming W 15 to 20 kt in the
afternoon. Waves 1 to 2 ft.
.MON NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Waves 1 to 2 ft.
.TUE...NW winds 5 to 10 kt.
.TUE NIGHT...NW winds 5 kt.
.WED...W winds 5 to 10 kt.
.WED NIGHT...W winds 10 kt.
.THU...W winds 10 kt.
.THU NIGHT...W winds 10 kt.
.FRI...W winds 5 to 10 kt.
.FRI NIGHT...SW winds 5 kt. A chance of rain.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 57 degrees.
$$
AMZ350-291200-
Waters from South Santee River to Edisto Beach SC out 20 NM-
620 PM EST Sun Dec 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY MORNING...
.TONIGHT...S winds 5 to 10 kt, becoming SW 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 6 seconds and SW 1 foot at
3 seconds, becoming SW 2 ft at 4 seconds and E 2 ft at 7 seconds.
Patchy fog after midnight.
.MON...SW winds 15 to 20 kt, becoming W 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
5 seconds, becoming SW 6 ft at 6 seconds and E 2 ft at
11 seconds. Patchy fog in the morning.
.MON NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. 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 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to
3 ft in the afternoon. Wave Detail: N 3 ft at 4 seconds and E
1 foot at 11 seconds, becoming N 2 ft at 4 seconds and E 1 foot
at 11 seconds.
.TUE NIGHT...NW winds 5 to 10 kt. Seas 2 ft. Wave Detail: N
1 foot at 4 seconds and E 1 foot at 11 seconds.
.WED...NW winds 5 to 10 kt, becoming W 10 to 15 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at
5 seconds, becoming W 1 foot at 3 seconds and NE 1 foot at
6 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 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 10 kt. Seas 2 ft. A chance of rain.
$$
AMZ352-291200-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
620 PM EST Sun Dec 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...
.TONIGHT...SW winds 5 to 10 kt with gusts to 20 kt, increasing to
15 kt late. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and
E 2 ft at 6 seconds. Patchy fog late this evening. Areas of fog
after midnight, then patchy fog late.
.MON...SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft,
building to 4 to 5 ft in the afternoon. Wave Detail: SW 3 ft at
4 seconds and E 2 ft at 8 seconds, becoming SW 4 ft at 5 seconds
and E 2 ft at 8 seconds. A slight chance of showers in the
afternoon.
.MON NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 4 to 5 ft. Wave Detail: W 4 ft at 5 seconds
and E 2 ft at 11 seconds.
.TUE...NW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 ft in
the afternoon. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at
11 seconds, becoming N 2 ft at 4 seconds and E 1 foot at
11 seconds.
.TUE NIGHT...NW winds 5 to 10 kt. Seas 2 ft. Wave Detail: N
1 foot at 3 seconds and E 1 foot at 11 seconds.
.WED...W winds 10 to 15 kt. Seas 2 ft. Wave Detail: N 1 foot at
3 seconds and E 1 foot at 10 seconds.
.WED NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft.
.THU...W winds 15 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of rain.
$$
AMZ354-291200-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
620 PM EST Sun Dec 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...
.TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E
2 ft at 11 seconds. Patchy fog late this evening. Areas of fog
after midnight.
.MON...SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft.
Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds. A
slight chance of showers in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 4 to 5 ft. Wave Detail: W 4 ft at 4 seconds
and E 2 ft at 12 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 2 ft at
11 seconds, becoming N 3 ft at 4 seconds and E 1 foot at
11 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 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 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 2 ft.
.FRI...W winds 10 to 15 kt. Seas 2 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of rain.
$$
AMZ374-291200-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
620 PM EST Sun Dec 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON...
.TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to
4 ft after midnight. Wave Detail: E 2 ft at 11 seconds and SW
1 foot at 2 seconds, becoming SW 3 ft at 4 seconds and E 3 ft at
8 seconds. Patchy fog after midnight.
.MON...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 5 seconds and
E 3 ft at 8 seconds. A slight chance of showers in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Seas 5 to
7 ft. Wave Detail: W 6 ft at 5 seconds and E 3 ft at 11 seconds.
.TUE...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 4 to 6 ft, subsiding to 3 to 4 ft in the
afternoon. Wave Detail: NW 5 ft at 5 seconds and E 2 ft at
11 seconds, becoming NW 4 ft at 5 seconds and E 2 ft at
11 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N
3 ft at 4 seconds and E 1 foot at 11 seconds.
.WED...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 5 seconds and E 1 foot at 11 seconds.
.WED NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft.
.THU...W winds 15 to 20 kt. Seas 3 to 4 ft.
.THU NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft.
.FRI...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
rain.
$$
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
620 PM EST Sun Dec 28 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
AMZ300-291200-
620 PM EST Sun Dec 28 2025
.Synopsis for the coastal waters of south coastal South Carolina
and north coastal Georgia...
A warm front will lift north later today, then a cold front will
move through Monday afternoon. High pressure will build in
through late week, then a cold front could affect the area next
weekend.
$$
AMZ330-291200-
Charleston Harbor-
620 PM EST Sun Dec 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING...
.TONIGHT...SW winds 5 to 10 kt, becoming 10 kt late. Patchy fog
late.
.MON...SW winds 10 to 15 kt, becoming W 15 to 20 kt in the
afternoon. Waves 1 to 2 ft.
.MON NIGHT...NW winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Waves 1 to 2 ft.
.TUE...NW winds 5 to 10 kt.
.TUE NIGHT...NW winds 5 kt.
.WED...W winds 5 to 10 kt.
.WED NIGHT...W winds 10 kt.
.THU...W winds 10 kt.
.THU NIGHT...W winds 10 kt.
.FRI...W winds 5 to 10 kt.
.FRI NIGHT...SW winds 5 kt. A chance of rain.
Unless otherwise noted, waves 1 foot or less.
Charleston Harbor water temperature 57 degrees.
$$
AMZ350-291200-
Waters from South Santee River to Edisto Beach SC out 20 NM-
620 PM EST Sun Dec 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY MORNING...
.TONIGHT...S winds 5 to 10 kt, becoming SW 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 6 seconds and SW 1 foot at
3 seconds, becoming SW 2 ft at 4 seconds and E 2 ft at 7 seconds.
Patchy fog after midnight.
.MON...SW winds 15 to 20 kt, becoming W 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
5 seconds, becoming SW 6 ft at 6 seconds and E 2 ft at
11 seconds. Patchy fog in the morning.
.MON NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. 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 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 to
3 ft in the afternoon. Wave Detail: N 3 ft at 4 seconds and E
1 foot at 11 seconds, becoming N 2 ft at 4 seconds and E 1 foot
at 11 seconds.
.TUE NIGHT...NW winds 5 to 10 kt. Seas 2 ft. Wave Detail: N
1 foot at 4 seconds and E 1 foot at 11 seconds.
.WED...NW winds 5 to 10 kt, becoming W 10 to 15 kt in the
afternoon. Seas 1 foot or less, then around 2 ft in the
afternoon. Wave Detail: W 1 foot at 3 seconds and NE 1 foot at
5 seconds, becoming W 1 foot at 3 seconds and NE 1 foot at
6 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 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 10 kt. Seas 2 ft. A chance of rain.
$$
AMZ352-291200-
Waters from Edisto Beach SC to Savannah GA out 20 NM-
620 PM EST Sun Dec 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...
.TONIGHT...SW winds 5 to 10 kt with gusts to 20 kt, increasing to
15 kt late. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and
E 2 ft at 6 seconds. Patchy fog late this evening. Areas of fog
after midnight, then patchy fog late.
.MON...SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft,
building to 4 to 5 ft in the afternoon. Wave Detail: SW 3 ft at
4 seconds and E 2 ft at 8 seconds, becoming SW 4 ft at 5 seconds
and E 2 ft at 8 seconds. A slight chance of showers in the
afternoon.
.MON NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 4 to 5 ft. Wave Detail: W 4 ft at 5 seconds
and E 2 ft at 11 seconds.
.TUE...NW winds 10 to 15 kt. Seas 3 to 4 ft, subsiding to 2 ft in
the afternoon. Wave Detail: NW 3 ft at 4 seconds and E 1 foot at
11 seconds, becoming N 2 ft at 4 seconds and E 1 foot at
11 seconds.
.TUE NIGHT...NW winds 5 to 10 kt. Seas 2 ft. Wave Detail: N
1 foot at 3 seconds and E 1 foot at 11 seconds.
.WED...W winds 10 to 15 kt. Seas 2 ft. Wave Detail: N 1 foot at
3 seconds and E 1 foot at 10 seconds.
.WED NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft.
.THU...W winds 15 kt. Seas 2 to 3 ft.
.THU NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of rain.
$$
AMZ354-291200-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
620 PM EST Sun Dec 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH
LATE MONDAY NIGHT...
.TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt after
midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 3 seconds and E
2 ft at 11 seconds. Patchy fog late this evening. Areas of fog
after midnight.
.MON...SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft.
Wave Detail: SW 3 ft at 4 seconds and E 2 ft at 8 seconds. A
slight chance of showers in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt, diminishing to 15 to 20 kt
after midnight. Seas 4 to 5 ft. Wave Detail: W 4 ft at 4 seconds
and E 2 ft at 12 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 2 ft at
11 seconds, becoming N 3 ft at 4 seconds and E 1 foot at
11 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 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 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 2 ft.
.FRI...W winds 10 to 15 kt. Seas 2 ft.
.FRI NIGHT...SW winds 5 to 10 kt. Seas 2 ft. A chance of rain.
$$
AMZ374-291200-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
620 PM EST Sun Dec 28 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY AFTERNOON...
.TONIGHT...SW winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to
4 ft after midnight. Wave Detail: E 2 ft at 11 seconds and SW
1 foot at 2 seconds, becoming SW 3 ft at 4 seconds and E 3 ft at
8 seconds. Patchy fog after midnight.
.MON...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the
afternoon. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 5 seconds and
E 3 ft at 8 seconds. A slight chance of showers in the afternoon.
.MON NIGHT...NW winds 20 to 25 kt with gusts to 30 kt. Seas 5 to
7 ft. Wave Detail: W 6 ft at 5 seconds and E 3 ft at 11 seconds.
.TUE...NW winds 15 to 20 kt, diminishing to 10 to 15 kt in the
afternoon. Seas 4 to 6 ft, subsiding to 3 to 4 ft in the
afternoon. Wave Detail: NW 5 ft at 5 seconds and E 2 ft at
11 seconds, becoming NW 4 ft at 5 seconds and E 2 ft at
11 seconds.
.TUE NIGHT...NW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N
3 ft at 4 seconds and E 1 foot at 11 seconds.
.WED...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: N 2 ft
at 5 seconds and E 1 foot at 11 seconds.
.WED NIGHT...W winds 15 to 20 kt with gusts to 25 kt. Seas 3 to
4 ft.
.THU...W winds 15 to 20 kt. Seas 3 to 4 ft.
.THU NIGHT...W winds 15 to 20 kt. Seas 3 to 4 ft.
.FRI...W winds 10 to 15 kt. Seas 2 to 3 ft.
.FRI NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
rain.
$$