Average annual temperature is 11.0 °C
Absolute maximum temperature: 34.2 °C
Absolute minimum temperature: -10.5 °C
Number of sunny days: 157 days
Number of rainy days: 161 days
Number of snow days: 47 days
Look at detailed online map of Valle d'Aosta
* Weather data for Valle d'Aosta Italy is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.4 | 15.2 | 13.5 | 19.6 | 23.2 | 28.6 | 31.3 | 34.2 | 28.6 | 26.7 | 15.2 | 13.1 |
| Average daytime temperature (°C) | 4.7 | 8.3 | 9.0 | 10.9 | 17.0 | 22.8 | 26.1 | 26.3 | 23.6 | 18.5 | 8.2 | 7.3 |
| Average temperature (°C) | 1.2 | 4.4 | 5.4 | 6.8 | 12.6 | 18.1 | 20.6 | 20.7 | 17.9 | 14.2 | 4.9 | 4.6 |
| Average night temperature (°C) | -2.0 | 0.6 | 1.3 | 1.8 | 7.8 | 12.4 | 14.5 | 15.0 | 12.7 | 9.9 | 0.6 | 1.1 |
| Absolute minimum temperature (°C) | -10.5 | -9.0 | -8.2 | -4.0 | 1.3 | 6.8 | 7.4 | 8.2 | 6.7 | 2.2 | -5.8 | -8.8 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 |
| Daylight mean duration (h) | 9.1 | 10.4 | 11.9 | 13.5 | 14.9 | 15.7 | 15.3 | 14.1 | 12.5 | 10.9 | 9.5 | 8.7 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 6.5 | 8.3 | 8.6 | 10.1 | 10.0 | 12.4 | 13.5 | 11.7 | 10.4 | 7.1 | 5.1 | 5.0 |
| Precipitation (mm) | 62 | 10 | 151 | 55 | 151 | 152 | 30 | 52 | 34 | 82 | 253 | 174 |
| Sunny days | 18 | 20 | 11 | 13 | 3 | 4 | 14 | 16 | 19 | 16 | 7 | 16 |
| Rainy days | 1 | 2 | 14 | 11 | 28 | 26 | 17 | 15 | 11 | 15 | 11 | 10 |
| Snow days | 12 | 6 | 6 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 5 |
The best time to visit Valle d'Aosta during the most sunny months:
Months with the longest average daylight duration in Valle d'Aosta:
The largest precipitation sum in Valle d'Aosta is at