fzus52 kchs 121745
cwfchs
expires:202603130700;;554021

coastal waters forecast
national weather service charleston sc
144 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


amz330-130700-
charleston harbor-
144 pm edt thu mar 12 2026

...small craft advisory in effect until 11 pm edt this evening...

.this afternoon...w winds 15 kt, becoming n late. waves 1 to
2 ft. showers with a slight chance of tstms early, then a chance
of showers late. 
.tonight...n winds 15 to 20 kt, becoming ne 10 to 15 kt after
midnight. waves 1 to 2 ft. 
.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. showers likely with a chance of tstms.
.sun night...s winds 10 to 15 kt. showers likely with a chance of
tstms. 
.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.  

winds and waves higher in and near tstms.

unless otherwise noted, waves 1 foot or less. 

charleston harbor water temperature 62 degrees. 

$$

fzus52 kchs 121745
cwfchs
expires:202603130700;;554022

coastal waters forecast
national weather service charleston sc
144 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


amz350-130700-
waters from south santee river to edisto beach sc out 20 nm-
144 pm edt thu mar 12 2026

...gale warning in effect through late tonight...

.this afternoon...sw winds 20 to 25 kt, becoming nw 25 to 30 kt
late. seas 5 to 7 ft. wave detail: s 6 ft at 7 seconds and se
2 ft at 9 seconds. showers with a slight chance of tstms early,
then a chance of showers late. 
.tonight...n winds 25 to 30 kt, becoming ne 20 to 25 kt after
midnight. 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 3 to 4 ft. showers likely with a
chance of tstms. 
.sun night...s winds 20 to 25 kt. seas 4 to 6 ft. showers with a
chance of tstms. 
.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.  

winds and seas higher in and near tstms.

$$