fzus52 kchs 100940
cwfchs
expires:202512102200;;327303

coastal waters forecast
national weather service charleston sc
440 am est wed dec 10 2025

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


amz330-102200-
charleston harbor-
440 am est wed dec 10 2025

...small craft advisory in effect from this evening through late
tonight...

.today...w winds 5 kt, becoming sw 10 to 15 kt with gusts to
20 kt this afternoon. 
.tonight...w winds 15 to 20 kt with gusts to 25 kt. waves 1 to
2 ft. 
.thu...nw winds 10 to 15 kt. 
.thu night...w winds 5 kt. 
.fri...w winds 5 to 10 kt. 
.fri night...sw winds 5 to 10 kt. 
.sat...w winds 5 kt. 
.sat night...sw winds 5 kt. 
.sun...w winds 5 to 10 kt. 
.sun night...n winds 15 to 20 kt. waves 1 to 2 ft.  

unless otherwise noted, waves 1 foot or less. 

charleston harbor water temperature 54 degrees. 

$$

fzus52 kchs 100940
cwfchs
expires:202512102200;;327304

coastal waters forecast
national weather service charleston sc
440 am est wed dec 10 2025

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


amz350-102200-
waters from south santee river to edisto beach sc out 20 nm-
440 am est wed dec 10 2025

...small craft advisory in effect from 3 pm est this afternoon
through thursday morning...

.today...w winds 5 to 10 kt, becoming sw 15 to 20 kt with gusts
to 25 kt. seas 2 to 3 ft, building to 3 to 4 ft this afternoon.
wave detail: e 3 ft at 10 seconds, becoming sw 3 ft at 4 seconds
and e 3 ft at 10 seconds. 
.tonight...w winds 25 to 30 kt, diminishing to 20 to 25 kt after
midnight. seas 4 to 6 ft. wave detail: sw 5 ft at 5 seconds and e
3 ft at 10 seconds. 
.thu...nw winds 15 to 20 kt with gusts to 25 kt, diminishing to
10 to 15 kt in the afternoon. seas 4 to 5 ft, subsiding to 3 to
4 ft in the afternoon. wave detail: nw 4 ft at 6 seconds and e
2 ft at 9 seconds, becoming nw 3 ft at 5 seconds and e 1 foot at
9 seconds. 
.thu night...nw winds 10 kt. seas 2 to 3 ft. wave detail: nw 2 ft
at 5 seconds and e 1 foot at 9 seconds. 
.fri...w winds 5 to 10 kt, becoming sw 10 to 15 kt with gusts to
20 kt in the afternoon. seas 2 to 3 ft. wave detail: sw 2 ft at
4 seconds and se 1 foot at 8 seconds. 
.fri night...w winds 15 to 20 kt. seas 2 to 3 ft, building to
3 to 4 ft after midnight. wave detail: sw 3 ft at 4 seconds and
se 1 foot at 8 seconds, becoming sw 3 ft at 5 seconds and se
1 foot at 8 seconds. 
.sat...w winds 10 to 15 kt. seas 2 to 3 ft. 
.sat night...sw winds 5 to 10 kt. seas 2 ft. 
.sun...w winds 15 to 20 kt. seas 2 to 3 ft. 
.sun night...n winds 25 to 30 kt. seas 4 to 6 ft.  

$$