fzus52 kchs 210939
cwfchs
expires:202602212300;;006456

coastal waters forecast
national weather service charleston sc
439 am est sat feb 21 2026

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


amz330-212300-
charleston harbor-
439 am est sat feb 21 2026

.today...w winds 5 to 10 kt, becoming se early this afternoon,
then becoming e late. patchy fog early this morning. a chance of
showers this morning. a chance of tstms. showers this afternoon. 
.tonight...e winds 5 kt, becoming w after midnight. showers with
a chance of tstms. 
.sun...w winds 10 to 15 kt, becoming nw 15 to 20 kt in the
afternoon. waves 1 to 2 ft. showers likely with a slight chance
of tstms in the morning, then a slight chance of showers in the
afternoon. 
.sun night...nw winds 20 kt, diminishing to 15 kt after midnight.
waves 1 to 2 ft. 
.mon...nw winds 15 kt with gusts to 20 kt. 
.mon night...nw winds 10 to 15 kt. 
.tue...w winds 5 to 10 kt. 
.tue night...sw winds 5 to 10 kt. 
.wed...sw winds 10 to 15 kt. 
.wed night...sw winds 10 kt.  

winds and waves higher in and near tstms.

unless otherwise noted, waves 1 foot or less. 

charleston harbor water temperature 54 degrees. 

$$

fzus52 kchs 210939
cwfchs
expires:202602212300;;006457

coastal waters forecast
national weather service charleston sc
439 am est sat feb 21 2026

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


amz350-212300-
waters from south santee river to edisto beach sc out 20 nm-
439 am est sat feb 21 2026

...gale watch in effect from sunday afternoon through monday
morning...

.today...sw winds 10 to 15 kt, becoming e late. seas 2 to 3 ft.
wave detail: s 3 ft at 6 seconds and e 1 foot at 11 seconds.
patchy fog early this morning. a chance of showers and tstms.
vsby 1 nm or less this morning. 
.tonight...e winds 5 to 10 kt, becoming nw after midnight. seas
2 to 3 ft. wave detail: s 3 ft at 6 seconds and e 1 foot at
10 seconds. showers with a chance of tstms. 
.sun...nw winds 15 to 20 kt with gusts to 25 kt, increasing to
20 to 25 kt with gusts to 35 kt in the afternoon. seas 3 to 4 ft,
building to 4 to 5 ft in the afternoon. wave detail: sw 3 ft at
5 seconds and e 1 foot at 7 seconds, becoming w 5 ft at 5 seconds
and e 1 foot at 8 seconds. showers likely with a slight chance of
tstms in the morning, then a chance of showers in the afternoon. 
.sun night...nw winds 25 to 30 kt. seas 5 to 7 ft, subsiding to
4 to 6 ft after midnight. wave detail: w 6 ft at 5 seconds and e
1 foot at 9 seconds, becoming nw 6 ft at 5 seconds and e 1 foot
at 10 seconds. 
.mon...nw winds 20 to 25 kt. gusts to 35 kt in the morning. seas
4 to 6 ft, subsiding to 4 to 5 ft in the afternoon. wave detail:
nw 6 ft at 5 seconds, becoming n 5 ft at 5 seconds. 
.mon night...nw winds 20 to 25 kt. seas 3 to 4 ft. wave detail: n
4 ft at 5 seconds. 
.tue...nw winds 15 to 20 kt. seas 2 to 3 ft. 
.tue night...sw winds 10 to 15 kt. seas 2 to 3 ft. 
.wed...sw winds 15 to 20 kt. seas 3 to 4 ft. 
.wed night...sw winds 15 to 20 kt. seas 4 to 5 ft.  

winds and seas higher in and near tstms.

$$