fzus52 kchs 212139
cwfchs
expires:202603221100;;078440

coastal waters forecast
national weather service charleston sc
539 pm edt sat mar 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


amz330-221100-
charleston harbor-
539 pm edt sat mar 21 2026

.tonight...sw winds 10 kt, diminishing to 5 kt after midnight. 
.sun...sw winds 5 to 10 kt. 
.sun night...sw winds 10 kt. 
.mon...sw winds 10 kt. a slight chance of showers in the
afternoon. 
.mon night...nw winds 5 to 10 kt, becoming ne 15 to 20 kt with
gusts to 25 kt after midnight. waves 1 to 2 ft. a slight chance
of tstms in the evening. a slight chance of showers. 
.tue...ne winds 15 to 20 kt with gusts to 30 kt. waves 1 to 2 ft.
.tue night...ne winds 10 to 15 kt. a slight chance of showers in
the evening, then a chance of showers after midnight. 
.wed...ne winds 10 kt. a slight chance of showers. 
.wed night...e winds 5 kt. 
.thu...se winds 5 to 10 kt. 
.thu night...sw winds 5 kt.  

winds and waves higher in and near tstms.

unless otherwise noted, waves 1 foot or less. 

charleston harbor water temperature 61 degrees. 

$$

fzus52 kchs 212139
cwfchs
expires:202603221100;;078441

coastal waters forecast
national weather service charleston sc
539 pm edt sat mar 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


amz350-221100-
waters from south santee river to edisto beach sc out 20 nm-
539 pm edt sat mar 21 2026

.tonight...sw winds 10 to 15 kt. seas 3 to 4 ft. wave detail: sw
3 ft at 4 seconds and e 3 ft at 10 seconds. 
.sun...w winds 10 to 15 kt, becoming sw 15 to 20 kt in the
afternoon. seas 3 to 4 ft. wave detail: sw 3 ft at 5 seconds and
e 2 ft at 9 seconds. 
.sun night...sw winds 15 to 20 kt. seas 4 to 5 ft. wave detail:
sw 4 ft at 5 seconds and e 2 ft at 9 seconds. 
.mon...sw winds 15 to 20 kt. seas 4 to 5 ft. wave detail: sw 4 ft
at 6 seconds and e 2 ft at 9 seconds. a slight chance of showers
in the afternoon. 
.mon night...w winds 15 to 20 kt, becoming ne 25 to 30 kt after
midnight. seas 3 to 4 ft. wave detail: sw 4 ft at 6 seconds and
ne 4 ft at 9 seconds. a slight chance of tstms in the evening. a
chance of showers. 
.tue...ne winds 25 to 30 kt. seas 6 to 8 ft, building to 7 to
9 ft in the afternoon. wave detail: ne 8 ft at 7 seconds and s
1 foot at 5 seconds, becoming e 9 ft at 8 seconds. a slight
chance of showers in the afternoon.
.tue night...ne winds 20 to 25 kt with gusts to 30 kt,
diminishing to 15 to 20 kt after midnight. seas 7 to 9 ft,
subsiding to 5 to 7 ft after midnight. a slight chance of showers
in the evening, then a chance of showers after midnight. 
.wed...ne winds 15 to 20 kt. seas 4 to 6 ft. a slight chance of
showers. 
.wed night...e winds 5 to 10 kt. seas 3 to 4 ft. 
.thu...se winds 5 to 10 kt. seas 3 to 4 ft. 
.thu night...sw winds 10 to 15 kt. seas 3 to 4 ft.  

winds and seas higher in and near tstms.

$$