Strasbourg weather in September
September in Strasbourg: nice, a little rain, with clean air — one of the best months to visit.
#2 of 12 months in Strasbourg · #52 of 604 destinations to visit in September · comfort 91/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Strasbourg climate normals — September
| Daytime high | 22°C / 72°F | 😎 nice |
|---|---|---|
| Nighttime low | 13°C / 55°F | |
| Feels like (high) | 22°C / 72°F | |
| Rainfall | 58 mm / 2.3 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 12°C / 54°F | |
| Sunshine | 9.7 h/day | |
| Daylight | 12.6 h | |
| Wind | 12 km/h / 7 mph | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Strasbourg in September — FAQ
- Is September a good time to visit Strasbourg?
- September in Strasbourg: nice, a little rain, with clean air — one of the best months to visit. It ranks #2 of 12 months for Strasbourg on SeasonMap's comfort score (91/100).
- What is the weather like in Strasbourg in September?
- In September, Strasbourg averages a daily high of 22.1°C and a low of 12.8°C, with about 57.7 mm of rain over roughly 9.4 rainy days.
- What is the air quality in Strasbourg in September?
- Strasbourg has a mean US Air Quality Index of about 41 in September.