Charleston weather in April
April in Charleston: nice, rainy, with clean air — one of the best months to visit.
#1 of 12 months in Charleston · #80 of 604 destinations to visit in April · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Charleston climate normals — April
| Daytime high | 23°C / 73°F | 😎 nice |
|---|---|---|
| Nighttime low | 16°C / 60°F | |
| Feels like (high) | 23°C / 73°F | |
| Rainfall | 98 mm / 3.9 in | 🌧 rainy |
| Rainy days | 8 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 14°C / 57°F | |
| Sunshine | 10.6 h/day | |
| Daylight | 13 h | |
| Wind | 22 km/h / 13 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Charleston in April — FAQ
- Is April a good time to visit Charleston?
- April in Charleston: nice, rainy, with clean air — one of the best months to visit. It ranks #1 of 12 months for Charleston on SeasonMap's comfort score (89/100).
- What is the weather like in Charleston in April?
- In April, Charleston averages a daily high of 22.9°C and a low of 15.6°C, with about 98.4 mm of rain over roughly 8.2 rainy days.
- What is the air quality in Charleston in April?
- Charleston has a mean US Air Quality Index of about 44 in April.