Utrecht weather in September
September in Utrecht: nice, a little rain, with clean air — an excellent time to visit.
#4 of 12 months in Utrecht · #372 of 897 destinations to visit in September · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Utrecht in September
No notes yet. Open Utrecht on the map to add the first one.
Utrecht climate normals — September
| Daytime high | 20°C / 67°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Rainfall | 62 mm / 2.4 in | 🌦 some rain |
| Rainy days | 12 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 12°C / 54°F | |
| Sunshine | 8.6 h/day | |
| Daylight | 12.6 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Utrecht?
Loading map…
Utrecht in September — FAQ
- Is September a good time to visit Utrecht?
- September in Utrecht: nice, a little rain, with clean air — an excellent time to visit. It ranks #4 of 12 months for Utrecht on SeasonMap's comfort score (86/100).
- What is the weather like in Utrecht in September?
- In September, Utrecht averages a daily high of 19.7°C and a low of 12.4°C, with about 61.5 mm of rain over roughly 11.6 rainy days.
- What is the air quality in Utrecht in September?
- Utrecht has a mean US Air Quality Index of about 48 in September.