Charleston Weather in December
United States · 30-year monthly averages
👍 Good time to visit
December in Charleston is mild, with average daytime highs around 17°C (63°F) and nighttime lows near 5°C (42°F). Expect roughly 85mm of precipitation spread over about 7 rainy days, with a moderate amount of rain.
Avg high
17°C
63°F
Avg low
5°C
42°F
Rainfall
85mm
moderate
Rainy days
7
days with ≥1mm
🎒 What to pack
- light jacket
- layers for cool evenings
December vs the rest of the year
FAQ
- How hot is Charleston in December?
- December in Charleston is mild, with average daytime highs around 17°C (63°F) and nighttime lows near 5°C (42°F). Expect roughly 85mm of precipitation spread over about 7 rainy days, with a moderate amount of rain.
- Does it rain a lot in Charleston in December?
- Charleston sees around 85mm of precipitation in December on average — moderate by global standards.
- Is December a good time to visit Charleston?
- December is a good month to visit Charleston, with generally agreeable conditions.