(1/2)
Latest Coastal Waters Forecast by KCHS
Issued 12/21/2025 4:32 PM America/New_York.
Valid through 12/22/2025 5:30 AM America/New_York.
fzus52 kchs 212132
cwfchs
expires:202512221030;;991854
coastal waters forecast
national weather service charleston sc
432 pm est sun dec 21 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
amz330-221030-
charleston harbor-
432 pm est sun dec 21 2025
.tonight...ne winds 5 kt, increasing to 15 to 20 kt. waves
building 1 to 2 ft.
.mon...ne winds 10 to 15 kt with gusts to 20 kt.
.mon night...ne winds 5 to 10 kt.
.tue...sw winds 5 to 10 kt.
.tue night...w winds 5 kt.
.wed...n winds 5 kt.
.wed night...e winds 5 kt.
.thu...w winds 5 to 10 kt.
.thu night...sw winds 5 to 10 kt.
unless otherwise noted, waves 1 foot or less.
charleston harbor water temperature 55 degrees.
$$
(2/2)
Latest Coastal Waters Forecast by KCHS
Issued 12/21/2025 4:32 PM America/New_York.
Valid through 12/22/2025 5:30 AM America/New_York.
fzus52 kchs 212132
cwfchs
expires:202512221030;;991855
coastal waters forecast
national weather service charleston sc
432 pm est sun dec 21 2025
south santee river sc to savannah ga out 20 nm and savannah ga to
altamaha sound ga out 60 nm, including charleston harbor and
grays reef national marine sanctuary
amz350-221030-
waters from south santee river to edisto beach sc out 20 nm-
432 pm est sun dec 21 2025
...small craft advisory in effect from 9 pm est this evening
through monday evening...
.tonight...ne winds 10 to 15 kt, increasing to 20 to 25 kt with
gusts to 30 kt. seas 2 to 3 ft, building to 4 to 6 ft. wave
detail: ne 3 ft at 4 seconds and se 2 ft at 10 seconds, becoming
ne 5 ft at 6 seconds and e 2 ft at 10 seconds.
.mon...ne winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. seas 5 to 7 ft. wave detail: e 6 ft at 8 seconds.
.mon night...ne winds 10 to 15 kt, becoming e 5 to 10 kt after
midnight. seas 4 to 6 ft, subsiding to 4 to 5 ft after midnight.
wave detail: e 6 ft at 8 seconds, becoming e 5 ft at 9 seconds.
.tue...sw winds 5 to 10 kt. seas 3 to 4 ft. wave detail: e 4 ft
at 9 seconds.
.tue night...w winds 10 kt. seas 2 to 3 ft. wave detail: e 3 ft
at 9 seconds and sw 2 ft at 4 seconds.
.wed...n winds 5 to 10 kt. seas 2 to 3 ft.
.wed night...e winds 5 kt. seas 2 ft.
.thu...w winds 5 to 10 kt. seas 2 ft.
.thu night...sw winds 10 to 15 kt. seas 2 to 3 ft.
$$
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