Birmingham weather in September
September in Birmingham: nice, a little rain, with clean air — an excellent time to visit.
#5 of 12 months in Birmingham · #283 of 604 destinations to visit in September · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Birmingham climate normals — September
| Daytime high | 18°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 11°C / 52°F | |
| Feels like (high) | 17°C / 63°F | |
| Rainfall | 66 mm / 2.6 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 11°C / 53°F | |
| Sunshine | 7.5 h/day | |
| Daylight | 12.7 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 38 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Birmingham in September — FAQ
- Is September a good time to visit Birmingham?
- September in Birmingham: nice, a little rain, with clean air — an excellent time to visit. It ranks #5 of 12 months for Birmingham on SeasonMap's comfort score (81/100).
- What is the weather like in Birmingham in September?
- In September, Birmingham averages a daily high of 18.4°C and a low of 11°C, with about 66.1 mm of rain over roughly 11.2 rainy days.
- What is the air quality in Birmingham in September?
- Birmingham has a mean US Air Quality Index of about 38 in September.