Weather in Charleston
What's the weather like in Charleston?
Charleston has a moderate climate and moderate rainfall spread across the year. Average daytime highs range from 14°C (58°F) in January to 31°C (88°F) in July, with overnight lows around 6°C (44°F) and 25°C (77°F) respectively.
For comfortable sightseeing temperatures (18–26°C daytime highs), the best months to visit Charleston are March through May, and September through November.
Quick facts
- Country
- 🇺🇸 United States
- Region
- North America
- Time zone
- America/New_York
- Coordinates
- 32.776, -79.931
Monthly climate
Long-run averages for each month of the year.
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 14°C / 58°F | 6°C / 44°F | 78 mm | 12 | — |
| February | 17°C / 62°F | 9°C / 48°F | 77 mm | 13 | — |
| March | 19°C / 67°F | 11°C / 53°F | 78 mm | 14 | — |
| April | 23°C / 73°F | 15°C / 59°F | 116 mm | 13 | — |
| May | 27°C / 80°F | 20°C / 67°F | 84 mm | 16 | — |
| June | 29°C / 85°F | 23°C / 74°F | 129 mm | 22 | — |
| July | 31°C / 88°F | 25°C / 77°F | 118 mm | 25 | — |
| August | 30°C / 86°F | 25°C / 76°F | 170 mm | 26 | — |
| September | 28°C / 82°F | 22°C / 72°F | 157 mm | 21 | — |
| October | 24°C / 76°F | 17°C / 63°F | 94 mm | 13 | — |
| November | 19°C / 66°F | 11°C / 52°F | 85 mm | 12 | — |
| December | 17°C / 62°F | 9°C / 49°F | 122 mm | 12 | — |
Charleston by month
Detailed weather for any specific month:
Seasonal patterns to know
Atlantic hurricane season runs June–November (peak August–October). Tropical storms and hurricanes are possible — peak risk is August–October.
Cities with a similar climate to Charleston
Frequently asked questions
When is the best time to visit Charleston?
The most comfortable months in Charleston are usually April, October, November, when average highs sit near 18–26°C (64–79°F) with relatively little rain. See the full month-by-month breakdown for the exact figures.
What is the hottest month in Charleston?
July is typically the hottest month in Charleston, averaging a high of 31°C (88°F).
What is the coldest month in Charleston?
January is usually the coldest, with average lows around 6°C (44°F).
Does it snow in Charleston?
Snow is rare in Charleston; the climate data shows essentially no snowfall across the year.
Live forecast, sunrise/sunset, and more.