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(1/6)
Latest Coastal Waters Forecast by KCHS
Issued 12/20/2025 4:40 PM America/New_York.
Valid through 12/21/2025 5:00 AM America/New_York.
fzus52 kchs 202140
cwfchs
expires:202512211000;;936954
coastal waters forecast
national weather service charleston sc
439 pm est sat dec 20 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
amz350-211000-
waters from south santee river to edisto beach sc out 20 nm-
440 pm est sat dec 20 2025
.tonight...ne winds 5 to 10 kt, becoming nw late. seas 3 to 4 ft.
wave detail: se 3 ft at 9 seconds and ne 2 ft at 4 seconds.
.sun...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 9 seconds and ne 1 foot at 5 seconds.
.sun night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. seas 3 to 4 ft, building to 4 to 6 ft after
midnight. wave detail: se 3 ft at 9 seconds and ne 2 ft at
4 seconds, becoming ne 5 ft at 5 seconds and se 3 ft at
10 seconds.
.mon...ne winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 5 to 7 ft. wave detail: e 6 ft at 10 seconds and
ne 5 ft at 6 seconds.
.mon night...ne winds 10 to 15 kt with gusts to 20 kt, becoming e
5 to 10 kt after midnight. seas 4 to 6 ft, subsiding to 4 to 5 ft
after midnight. wave detail: e 6 ft at 9 seconds, becoming e 5 ft
at 9 seconds.
.tue...sw winds 5 to 10 kt. seas 4 to 5 ft, subsiding to 3 to
4 ft in the afternoon. wave detail: e 4 ft at 9 seconds.
.tue night...w winds 5 to 10 kt. seas 3 to 4 ft.
.wed...n winds 5 to 10 kt. seas 2 to 3 ft.
.wed night...ne winds 5 to 10 kt. seas 2 to 3 ft.
.thu...se winds 5 to 10 kt. seas 2 to 3 ft.
.thu night...sw winds 10 to 15 kt. seas 3 ft.
$$
(2/6)
Latest Coastal Waters Forecast by KCHS
Issued 12/20/2025 4:40 PM America/New_York.
Valid through 12/21/2025 5:00 AM America/New_York.
fzus52 kchs 202140
cwfchs
expires:202512211000;;936955
coastal waters forecast
national weather service charleston sc
439 pm est sat dec 20 2025
south santee river sc to savannah ga out 20 nm and savannah ga to
altamaha sound ga out 60 nm, including charleston harbor and
grays reef national marine sanctuary
amz352-211000-
waters from edisto beach sc to savannah ga out 20 nm-
440 pm est sat dec 20 2025
.tonight...ne winds 5 to 10 kt, becoming nw late. seas 3 ft. wave
detail: se 3 ft at 9 seconds and ne 1 foot at 4 seconds.
.sun...n winds 5 to 10 kt. seas 2 to 3 ft. wave detail: se 3 ft
at 9 seconds and ne 1 foot at 5 seconds.
.sun night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. seas 2 to 3 ft, building to 4 to 5 ft after
midnight. wave detail: se 2 ft at 9 seconds and ne 1 foot at
5 seconds, becoming ne 5 ft at 5 seconds and se 2 ft at
10 seconds.
.mon...ne winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 4 to 6 ft, building to 5 to 6 ft in the
afternoon. wave detail: e 6 ft at 10 seconds and ne 5 ft at
6 seconds, becoming e 6 ft at 8 seconds.
.mon night...ne winds 10 to 15 kt with gusts to 20 kt, becoming e
5 to 10 kt after midnight. seas 4 to 6 ft, subsiding to 4 to 5 ft
after midnight. wave detail: e 6 ft at 9 seconds, becoming e 5 ft
at 9 seconds.
.tue...s winds 5 kt. seas 4 to 5 ft, subsiding to 3 to 4 ft in
the afternoon. wave detail: e 4 ft at 9 seconds.
.tue night...sw winds 5 to 10 kt. seas 3 to 4 ft.
.wed...n winds 5 to 10 kt. seas 2 to 3 ft.
.wed night...ne winds 5 kt. seas 2 to 3 ft.
.thu...se winds 5 to 10 kt. seas 2 to 3 ft.
.thu night...sw winds 5 to 10 kt. seas 2 to 3 ft.
$$
(3/6)
Latest Coastal Waters Forecast by KCHS
Issued 12/20/2025 4:40 PM America/New_York.
Valid through 12/21/2025 5:00 AM America/New_York.
fzus52 kchs 202140
cwfchs
expires:202512211000;;936956
coastal waters forecast
national weather service charleston sc
439 pm est sat dec 20 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
amz354-211000-
waters from savannah ga to altamaha sound ga out 20 nm, including
grays reef national marine sanctuary-
440 pm est sat dec 20 2025
.tonight...variable winds 5 kt. seas 2 to 3 ft. wave detail: se
3 ft at 9 seconds and ne 1 foot at 3 seconds.
.sun...nw winds 5 to 10 kt, becoming n in the afternoon. seas
2 to 3 ft. wave detail: se 3 ft at 9 seconds and ne 1 foot at
4 seconds.
.sun night...ne winds 10 to 15 kt, increasing to 20 to 25 kt
after midnight. seas 2 to 3 ft, building to 4 to 5 ft after
midnight. wave detail: se 2 ft at 9 seconds and ne 1 foot at
5 seconds, becoming ne 5 ft at 5 seconds and e 2 ft at 9 seconds.
.mon...ne winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 4 to 6 ft, building to 5 to 6 ft in the
afternoon. wave detail: ne 5 ft at 6 seconds and e 3 ft at
10 seconds, becoming e 6 ft at 8 seconds and ne 5 ft at
5 seconds.
.mon night...ne winds 15 to 20 kt, becoming e 5 to 10 kt after
midnight. seas 5 to 6 ft, subsiding to 4 to 5 ft after midnight.
wave detail: e 6 ft at 8 seconds, becoming e 5 ft at 9 seconds.
.tue...se winds 5 kt, becoming sw in the afternoon. seas 4 to
5 ft. wave detail: e 5 ft at 9 seconds.
.tue night...sw winds 5 to 10 kt. seas 3 to 4 ft.
.wed...n winds 5 to 10 kt. seas 3 to 4 ft.
.wed night...ne winds 5 kt. seas 2 to 3 ft.
.thu...ne winds 5 kt. seas 2 to 3 ft.
.thu night...sw winds 5 to 10 kt. seas 2 to 3 ft.
$$
(4/6)
Latest Coastal Waters Forecast by KCHS
Issued 12/20/2025 4:40 PM America/New_York.
Valid through 12/21/2025 5:00 AM America/New_York.
fzus52 kchs 202140
cwfchs
expires:202512211000;;936957
coastal waters forecast
national weather service charleston sc
439 pm est sat dec 20 2025
south santee river sc to savannah ga out 20 nm and savannah ga to
altamaha sound ga out 60 nm, including charleston harbor and
grays reef national marine sanctuary
amz374-211000-
waters from savannah ga to altamaha sound ga from 20 to 60 nm-
440 pm est sat dec 20 2025
.tonight...n winds 5 kt, becoming nw late. seas 3 to 4 ft. wave
detail: e 4 ft at 9 seconds and ne 1 foot at 3 seconds.
.sun...n winds 5 to 10 kt. seas 3 ft. wave detail: se 3 ft at
9 seconds and ne 1 foot at 4 seconds.
.sun night...ne winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. seas 3 to 4 ft, building to 4 to 6 ft after
midnight. wave detail: ne 3 ft at 5 seconds and e 3 ft at
9 seconds, becoming ne 6 ft at 6 seconds and e 3 ft at
10 seconds.
.mon...ne winds 20 to 25 kt. seas 6 to 8 ft. wave detail: ne 7 ft
at 6 seconds and e 7 ft at 11 seconds.
.mon night...e winds 15 to 20 kt, becoming se 10 to 15 kt after
midnight. seas 6 to 7 ft, subsiding to 5 to 7 ft after midnight.
wave detail: e 7 ft at 9 seconds, becoming e 6 ft at 9 seconds. a
slight chance of rain in the evening.
.tue...se winds 5 to 10 kt, becoming sw in the afternoon. seas
5 to 6 ft. wave detail: e 6 ft at 9 seconds.
.tue night...sw winds 5 to 10 kt. seas 4 to 5 ft.
.wed...nw winds 5 to 10 kt. seas 3 to 4 ft.
.wed night...ne winds 5 to 10 kt. seas 3 ft.
.thu...nw winds 5 kt. seas 3 to 4 ft.
.thu night...sw winds 10 to 15 kt. seas 3 to 4 ft.
$$
(5/6)
Latest Coastal Waters Forecast by KJAX
Issued 12/20/2025 12:29 PM America/New_York.
Valid through 12/21/2025 3:00 AM America/New_York.
fzus52 kjax 201729
cwfjax
expires:202512210800;;924867
coastal waters forecast for northeast florida/southeast georgia
national weather service jacksonville fl
1229 pm est sat dec 20 2025
atlantic coastal waters from altamaha sound ga to flagler beach
fl out to 60 nm.
seas are provided as a range of the average height of the highest
1/3 of the waves, along with the occasional height of the average
highest 1/10 of the waves.
amz450-452-454-210800-
coastal waters from altamaha sound to fernandina beach fl out
20 nm-
coastal waters from fernandina beach to st. augustine fl out
20 nm-
coastal waters from st. augustine to flagler beach fl out 20 nm-
1229 pm est sat dec 20 2025
.rest of today...north winds 5 to 10 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: east 3 feet at 9 seconds and
northeast 2 feet at 4 seconds. intracoastal waters light chop.
.tonight...north winds around 5 knots. seas 2 to 3 feet. wave
detail: east 3 feet at 9 seconds. intracoastal waters smooth.
.sunday...north winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. seas 2 to 3 feet. wave detail: east 3 feet at
9 seconds and northeast 2 feet at 4 seconds. intracoastal waters
a moderate chop.
.sunday night...northeast winds 10 to 15 knots, increasing to
20 to 25 knots after midnight. seas 2 to 4 feet, occasionally to
5 feet, building to 4 to 6 feet, occasionally to 8 feet after
midnight. wave detail: northeast 3 feet at 4 seconds and east
2 feet at 9 seconds, becoming northeast 5 feet at 5 seconds and
east 2 feet at 10 seconds. intracoastal waters rough.
.monday...northeast winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. seas 5 to 7 feet, occasionally to
9 feet. wave detail: northeast 7 feet at 6 seconds and east
6 feet at 11 seconds. intracoastal waters rough.
.monday night...east winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. seas 5 to 7 feet, occasionally to
9 feet. wave detail: east 6 feet at 8 seconds. intracoastal
waters choppy.
.tuesday...southeast winds 5 to 10 knots, becoming southwest.
seas 4 to 6 feet, occasionally to 8 feet. intracoastal waters
light chop.
.wednesday...north winds 5 to 10 knots. seas 2 to 4 feet,
occasionally to 5 feet. intracoastal waters light chop.
$$
(6/6)
Latest Coastal Waters Forecast by KJAX
Issued 12/20/2025 12:29 PM America/New_York.
Valid through 12/21/2025 3:00 AM America/New_York.
fzus52 kjax 201729
cwfjax
expires:202512210800;;924868
coastal waters forecast for northeast florida/southeast georgia
national weather service jacksonville fl
1229 pm est sat dec 20 2025
atlantic coastal waters from altamaha sound ga to flagler beach
fl out to 60 nm.
seas are provided as a range of the average height of the highest
1/3 of the waves, along with the occasional height of the average
highest 1/10 of the waves.
amz470-472-474-210800-
waters from altamaha sound ga to fernandina beach fl from 20 to
60 nm-
waters from fernandina beach to st. augustine fl from 20 to 60 nm-
waters from st. augustine to flagler beach fl from 20 to 60 nm-
1229 pm est sat dec 20 2025
.rest of today...north winds 5 to 10 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: east 4 feet at 9 seconds and
north 2 feet at 4 seconds.
.tonight...north winds around 5 knots. seas 3 to 4 feet,
occasionally to 5 feet. wave detail: east 3 feet at 9 seconds.
.sunday...north winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. seas 3 to 4 feet, occasionally to 5 feet. wave
detail: north 3 feet at 4 seconds and east 3 feet at 9 seconds.
.sunday night...northeast winds 15 to 20 knots, increasing to
20 to 25 knots after midnight. seas 3 to 5 feet, occasionally to
6 feet, building to 5 to 7 feet, occasionally to 9 feet after
midnight. wave detail: northeast 3 feet at 4 seconds and east
3 feet at 9 seconds, becoming northeast 6 feet at 6 seconds and
east 3 feet at 10 seconds.
.monday and monday night...east winds 20 to 25 knots. seas 6 to
8 feet, occasionally to 10 feet. wave detail: east 8 feet at
10 seconds and northeast 7 feet at 7 seconds. a slight chance of
showers.
.tuesday...southeast winds 10 to 15 knots, becoming southwest
5 to 10 knots. seas 5 to 8 feet, occasionally to 10 feet,
subsiding to 4 to 6 feet, occasionally to 8 feet. wave detail:
east 7 feet at 9 seconds, becoming east 6 feet at 9 seconds.
.wednesday...north winds 5 to 10 knots, becoming northeast. seas
3 to 5 feet, occasionally to 6 feet.
$$
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