Rovaniemi weather in September
September in Rovaniemi: cool, a little rain, with clean air — a great time to visit.
#5 of 12 months in Rovaniemi · #639 of 897 destinations to visit in September · comfort 72/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Rovaniemi in September
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Rovaniemi climate normals — September
| Daytime high | 11°C / 53°F | 🙂 cool |
|---|---|---|
| Nighttime low | 6°C / 43°F | |
| Rainfall | 73 mm / 2.9 in | 🌦 some rain |
| Rainy days | 12 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 7°C / 45°F | |
| Sunshine | 5.3 h/day | |
| Daylight | 13.1 h | |
| Wind | 16 km/h / 10 mph | |
| Snowfall | 0.1 cm / 0 in | |
| Air quality (US AQI) | 29 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Rovaniemi in September — FAQ
- Is September a good time to visit Rovaniemi?
- September in Rovaniemi: cool, a little rain, with clean air — a great time to visit. It ranks #5 of 12 months for Rovaniemi on SeasonMap's comfort score (72/100).
- What is the weather like in Rovaniemi in September?
- In September, Rovaniemi averages a daily high of 11.4°C and a low of 6.2°C, with about 72.7 mm of rain over roughly 11.8 rainy days.
- What is the air quality in Rovaniemi in September?
- Rovaniemi has a mean US Air Quality Index of about 29 in September.