fzus52 kchs 151821
cwfchs
expires:202603160830;;728917

coastal waters forecast
national weather service charleston sc
221 pm edt sun mar 15 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


amz330-160830-
charleston harbor-
221 pm edt sun mar 15 2026

...small craft advisory in effect from monday morning through
monday evening...

.this afternoon...se winds 10 to 15 kt. a chance of showers and 
tstms.
.tonight...s winds 10 to 15 kt, increasing to 15 kt with gusts to
20 kt after midnight. a chance of tstms. a chance of showers in 
the evening, then showers likely after midnight. 
.mon...sw winds 15 to 20 kt with gusts to 30 kt. waves 1 to 2 ft.
a chance of tstms. showers.
.mon night...w winds 15 to 20 kt with gusts to 30 kt. waves 1 to
2 ft. showers likely with a chance of tstms in the evening. 
.tue...nw winds 10 to 15 kt. 
.tue night...nw winds 5 to 10 kt. 
.wed...ne winds 5 to 10 kt. 
.wed night...ne winds 5 to 10 kt. 
.thu...ne winds 5 kt. 
.thu night...ne 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 151821
cwfchs
expires:202603160830;;728918

coastal waters forecast
national weather service charleston sc
221 pm edt sun mar 15 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


amz350-160830-
waters from south santee river to edisto beach sc out 20 nm-
221 pm edt sun mar 15 2026

...small craft advisory in effect from midnight edt tonight
through tuesday morning...

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

winds and seas higher in and near tstms.

$$