Weather · Charleston, United States
Charleston Weather in December
December in Charleston averages 14°C by day and 4°C at night, with about 97mm of rain. That makes it a reasonable time to visit.
Avg high
14°C
57°F
Avg low
4°C
39°F
Rainfall
97mm
#6 wettest of 12
What to pack
Layers, plus a jacket for mornings and nights. Bring a compact umbrella for the odd shower.
Timing a trip around the weather? A Local Friend in Charleston builds it around the season for you.