Climate almanac
Au
Saint Gallen, Switzerland · 47.43°, 9.63°
What is the weather like in Au in September?
In September, Au is typically 66°F (19°C) during the day and 50°F (10°C) at night. The month brings about 5.2 in (133 mm) of precipitation in total.
- Average high66°F (19°C)
- Average low50°F (10°C)
- Precipitation5.2 in (133 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)