fzus52 kchs 130251
cwfchs
expires:202603131700;;576688

coastal waters forecast
national weather service charleston sc
1051 pm edt thu mar 12 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


amz330-131700-
charleston harbor-
1051 pm edt thu mar 12 2026

.tonight...ne winds 10 to 15 kt. 
.fri...ne winds 10 kt, becoming s in the afternoon. 
.fri night...sw winds 5 kt. 
.sat...n winds 5 kt, becoming e in the afternoon. 
.sat night...e winds 5 kt. 
.sun...e winds 5 to 10 kt. a chance of showers with a slight
chance of tstms in the morning, then showers likely with a chance
of tstms in the afternoon. 
.sun night...s winds 10 to 15 kt. a chance of tstms. showers
likely. 
.mon...sw winds 15 to 20 kt. waves 1 to 2 ft. showers with a
chance of tstms. 
.mon night...w winds 15 to 20 kt. waves 1 to 2 ft. a chance of
showers. 
.tue...nw winds 10 to 15 kt. 
.tue night...n winds 5 to 10 kt.  

winds and waves higher in and near tstms.

unless otherwise noted, waves 1 foot or less. 

charleston harbor water temperature 62 degrees. 

$$

fzus52 kchs 130251
cwfchs
expires:202603131700;;576689

coastal waters forecast
national weather service charleston sc
1051 pm edt thu mar 12 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


amz350-131700-
waters from south santee river to edisto beach sc out 20 nm-
1051 pm edt thu mar 12 2026

...gale warning in effect until 2 am edt friday...

.tonight...ne winds 25 to 30 kt with gusts to 35 kt, diminishing
to 20 to 25 kt with gusts to 30 kt. seas 4 to 6 ft. wave detail: 
n 5 ft at 4 seconds and s 5 ft at 7 seconds. 
.fri...e winds 15 to 20 kt with gusts to 25 kt, becoming se 5 to
10 kt in the afternoon. seas 4 to 5 ft, subsiding to 3 to 4 ft in
the afternoon. wave detail: ne 5 ft at 6 seconds and se 2 ft at
9 seconds, becoming e 4 ft at 8 seconds. 
.fri night...sw winds 5 kt. seas 3 to 4 ft, subsiding to 2 to
3 ft after midnight. wave detail: e 3 ft at 5 seconds and e 3 ft
at 8 seconds, becoming e 3 ft at 7 seconds. 
.sat...n winds 5 kt, becoming e in the afternoon. seas 2 to 3 ft.
wave detail: e 3 ft at 8 seconds. 
.sat night...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e
2 ft at 8 seconds. a slight chance of showers after midnight. 
.sun...e winds 10 to 15 kt. seas 2 to 3 ft, building to 3 to 4 ft
in the afternoon. wave detail: se 3 ft at 8 seconds, becoming se
4 ft at 7 seconds. a chance of showers with a slight chance of
tstms in the morning, then showers likely with a chance of tstms
in the afternoon. 
.sun night...s winds 15 to 20 kt, increasing to 20 to 25 kt with
gusts to 30 kt after midnight. seas 4 to 5 ft, building to 5 to
7 ft after midnight. a chance of tstms. showers.
.mon...sw winds 25 to 30 kt. seas 7 to 9 ft. showers with a
chance of tstms. 
.mon night...w winds 25 to 30 kt. seas 6 to 8 ft. a chance of
showers with a slight chance of tstms. 
.tue...nw winds 20 to 25 kt. seas 4 to 6 ft. 
.tue night...n winds 10 to 15 kt. seas 3 to 4 ft.  

winds and seas higher in and near tstms.

$$