Climate almanac
Altdorf
Uri, Switzerland · 46.88°, 8.64°
What is the weather like in Altdorf in September?
In September, Altdorf is typically 60°F (16°C) during the day and 45°F (7°C) at night. The month brings about 6.9 in (175 mm) of precipitation in total. Snowfall averages about 2.4 in (61 mm) over the month.
- Average high60°F (16°C)
- Average low45°F (7°C)
- Precipitation6.9 in (175 mm)
- Clear or mostly clear days6
- Snowfall2.4 in (61 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)