Asheville weather in September
September in Asheville: warm, rainy, with clean air — one of the best months to visit.
#2 of 12 months in Asheville · #84 of 604 destinations to visit in September · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Asheville climate normals — September
| Daytime high | 25°C / 77°F | 🌤 warm |
|---|---|---|
| Nighttime low | 15°C / 59°F | |
| Feels like (high) | 26°C / 79°F | |
| Rainfall | 90 mm / 3.5 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 14°C / 57°F | |
| Sunshine | 9.8 h/day | |
| Daylight | 12.4 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Asheville in September — FAQ
- Is September a good time to visit Asheville?
- September in Asheville: warm, rainy, with clean air — one of the best months to visit. It ranks #2 of 12 months for Asheville on SeasonMap's comfort score (89/100).
- What is the weather like in Asheville in September?
- In September, Asheville averages a daily high of 24.8°C and a low of 15°C, with about 89.6 mm of rain over roughly 9 rainy days.
- What is the air quality in Asheville in September?
- Asheville has a mean US Air Quality Index of about 42 in September.