December · United States
Best time to visit Charleston in December Weather, crowds & prices
Weather in Charleston in December
Average temperature 11°C, 105 mm of rain, about 3 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
5.4/10
Ranked #10 of 12 months
- Avg temp
- 11°C
- Rainfall
- 105 mm
- Humidity
- 81%
- Days with 6h+ sun
- 3
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
December in Charleston scores 5.4/10 for sightseeing and cultural travel - ranked #10 of 12. Expect around 11°C, 105 mm of rain, and roughly 3 days with 6+ hours of sunshine this month.
Charleston's peninsula holds the French Quarter, Rainbow Row, and the Battery, where the Ashley and Cooper rivers meet the harbor.
December in Charleston — workable with trade-offs
Expect 11°C (51°F) in December. A good month for city streets, viewpoints and long meals; leave swimming for another season.
105 mm of rain signals a properly wet month, with only about 3 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 5.4/10 on the same scale — 10th of 12 months, versus 8.8/10 for the best month here.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
Budget for mid-season pricing, and crowds are moderate.
If your dates are flexible, October is materially better in Charleston — 3.4 points higher on the same scale.
Frequently asked
- What is the weather like in Charleston in December?
- In December, Charleston averages 11°C, 105 mm of rain, and about 3 days with 6+ hours of sunshine. Its climate-comfort score is 5.4/10.
- Is December a good time to visit Charleston?
- December earns a 5.4/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Charleston in December?
- Expect about 105 mm of rain in December. Average humidity is 81% and there are about 3 days with 6+ hours of sunshine.
Curated in Charleston
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Charleston, United States. Live activities and tours from GetYourGuide, matched to this destination.