Climate almanac
Vaasa
Ostrobothnia, Finland · 63.10°, 21.62°
What is the weather like in Vaasa in September?
In September, Vaasa is typically 58°F (15°C) during the day and 46°F (8°C) at night. The month brings about 2.6 in (66 mm) of precipitation in total.
- Average high58°F (15°C)
- Average low46°F (8°C)
- Precipitation2.6 in (66 mm)
- Clear or mostly clear days4
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)