Climate almanac
Aosta
Aosta Valley, Italy · 45.74°, 7.32°
What is the weather like in Aosta in September?
In September, Aosta is typically 55°F (13°C) during the day and 39°F (4°C) at night. The month brings about 3.1 in (80 mm) of precipitation in total. Snowfall averages about 2.8 in (71 mm) over the month.
- Average high55°F (13°C)
- Average low39°F (4°C)
- Precipitation3.1 in (80 mm)
- Clear or mostly clear days5
- Snowfall2.8 in (71 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)