Climate almanac
Sierre
Valais, Switzerland · 46.29°, 7.54°
What is the weather like in Sierre in September?
In September, Sierre is typically 58°F (14°C) during the day and 40°F (4°C) at night. The month brings about 4.6 in (116 mm) of precipitation in total. Snowfall averages about 3.4 in (86 mm) over the month.
- Average high58°F (14°C)
- Average low40°F (4°C)
- Precipitation4.6 in (116 mm)
- Clear or mostly clear days6
- Snowfall3.4 in (86 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)