fzus52 kchs 210535
cwfchs
expires:202512211800;;953418

coastal waters forecast
national weather service charleston sc
1235 am est sun dec 21 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


amz330-211800-
charleston harbor-
1235 am est sun dec 21 2025

.rest of tonight...light and variable winds, becoming nw 5 kt
late. 
.sun...n winds 5 kt. 
.sun night...ne winds 5 to 10 kt, increasing to 15 to 20 kt after
midnight. waves 1 to 2 ft. 
.mon...ne winds 10 to 15 kt. 
.mon night...ne winds 5 to 10 kt. 
.tue...sw winds 5 to 10 kt. 
.tue night...w winds 5 kt. 
.wed...n winds 5 kt. 
.wed night...ne winds 5 kt. 
.thu...nw winds 5 to 10 kt. 
.thu night...sw winds 5 to 10 kt.  

unless otherwise noted, waves 1 foot or less. 

charleston harbor water temperature 54 degrees. 

$$

fzus52 kchs 210535
cwfchs
expires:202512211800;;953419

coastal waters forecast
national weather service charleston sc
1235 am est sun dec 21 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


amz350-211800-
waters from south santee river to edisto beach sc out 20 nm-
1235 am est sun dec 21 2025

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

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

$$