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Aosta Valley

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Aosta Valley Weather, Climate and Best Time to Visit

Data source：Meteostat
Update date：2025-09

Aosta Valley year round climate

  • Spring (March–May): Average 7.8–16.2°C, mild but rainy climate, especially in May. Common activities: Hiking, exploring mountain towns. Recommended clothing: Warm jacket, waterproof clothing, comfortable hiking shoes.
  • Summer (June–August): Average 20.8–24.3°C, warm and dry climate, abundant sunshine. Common activities: Mountain climbing, trekking, enjoying outdoor activities. Recommended clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 18.7–7.1°C, cool climate, moderate rainfall, pleasant scenery. Common activities: Leaf viewing, tasting local cuisine, visiting historical sites. Recommended clothing: Warm jacket, comfortable long pants, waterproof jacket.
  • Winter (December–February): Average 3.5–6.3°C, cold climate, possible snowfall. Common activities: Skiing, snowshoeing. Recommended clothing: Warm clothing, waterproof jacket, warm hat, gloves, scarf.

Aosta Valley climatological average

Annual average temperature: approx. 12.9°C / Annual rainfall: approx. 1313 mm / Summer humidity: 60%–70% / Rainiest month: May

Aosta Valley monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
2.8°C
48
February
6.3°C
69
March
7.8°C
161.2
April
10.8°C
100.6
May
16.2°C
216.4
June
20.8°C
104.6
July
24.3°C
59.1
August
23.5°C
80.7
September
18.7°C
88.5
October
15.4°C
141.9
November
7.1°C
114.5
December
3.5°C
128.6

Aosta Valley weather for the next seven days

12/21
Sunday
Light drizzle
1.2°C/-1.7°C
12/22
Monday
Light drizzle
0.2°C/-2.1°C
12/23
Tuesday
Freezing fog
0.5°C/-1.1°C
12/24
Wednesday
Light drizzle
0.4°C/-2.4°C
12/25
Thursday
Light drizzle
-3°C/-9.2°C
12/26
Friday
Sunny
-1.5°C/-10°C
12/27
Saturday
Sunny
2.4°C/-8.7°C

Aosta Valley Frequently Asked Questions and Useful Information for Travel

When is the best season to go to Alta Valley?

The best months to visit Elta Valley are from mid-March to early October, when the sunshine is relatively abundant and there is a greater chance of seeing the light beams. Especially in summer, which has longer sunshine hours, this is the peak season in the Alta Valley. If you want to avoid the crowds, go in spring (end of March to early April) and autumn (end of September to early October).

Which is better, Alta Valle or Lower Alta Valley?

The Alta Alta Valley is suitable for photography enthusiasts and family travelers. The terrain is not difficult and the valley is flat. The Lower Elta Valley is suitable for adventurous people and requires climbing up and down.