fzus52 kchs 211720
cwfchs
expires:202602220700;;022232

coastal waters forecast
national weather service charleston sc
1220 pm 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


amz330-220700-
charleston harbor-
1220 pm est sat feb 21 2026

...small craft advisory in effect from sunday afternoon through
monday morning...

.this afternoon...s winds 10 kt, becoming ne late. a chance of
tstms. showers.
.tonight...ne 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. 
.sun night...nw winds 15 to 20 kt with gusts to 25 kt. 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 to 15 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 211720
cwfchs
expires:202602220700;;022233

coastal waters forecast
national weather service charleston sc
1220 pm 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


amz350-220700-
waters from south santee river to edisto beach sc out 20 nm-
1220 pm est sat feb 21 2026

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

.this afternoon...sw winds 10 to 15 kt, becoming ne late. seas
2 to 3 ft. wave detail: s 3 ft at 6 seconds and e 1 foot at
11 seconds. a chance of showers with a slight chance of tstms
early, then showers with a chance of tstms late. 
.tonight...e winds 5 to 10 kt, becoming w after midnight. seas
2 to 3 ft. wave detail: s 2 ft at 6 seconds and e 1 foot at
10 seconds. showers with a chance of tstms. 
.sun...w winds 15 to 20 kt with gusts to 25 kt, becoming nw 25 to
30 kt in the afternoon. seas 2 to 3 ft, building to 4 to 5 ft in
the afternoon. wave detail: s 3 ft at 5 seconds and e 1 foot at
9 seconds, becoming w 5 ft at 5 seconds and e 1 foot at
9 seconds. showers likely with a slight chance of tstms in the
morning. 
.sun night...nw winds 25 to 30 kt with gusts to 40 kt. seas 4 to
6 ft. wave detail: w 6 ft at 5 seconds and e 1 foot at 9 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 5 ft at 5 seconds and ne 1 foot at 9 seconds, becoming n 4 ft
at 6 seconds. 
.mon night...nw winds 20 to 25 kt. seas 4 to 5 ft, subsiding to
3 to 4 ft after midnight. wave detail: n 4 ft at 5 seconds. 
.tue...w winds 15 to 20 kt. seas 2 to 3 ft. 
.tue night...sw winds 15 to 20 kt. seas 2 to 3 ft. 
.wed...sw winds 20 to 25 kt. seas 4 to 6 ft. 
.wed night...sw winds 15 to 20 kt. seas 4 to 5 ft.  

winds and seas higher in and near tstms.

$$