Climate almanac
Grenchen
Solothurn, Switzerland · 47.19°, 7.40°
What is the weather like in Grenchen in September?
In September, Grenchen is typically 68°F (20°C) during the day and 50°F (10°C) at night. The month brings about 4.1 in (104 mm) of precipitation in total.
- Average high68°F (20°C)
- Average low50°F (10°C)
- Precipitation4.1 in (104 mm)
- Clear or mostly clear days8
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)