Valle d'Aosta is one of several regions in Italy, with temperatures that range from -4°C (25°F) in January to 18°C (64°F) during the peak of July. We've based our full climate overview on data from Courmayeur, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
In Valle d'Aosta, there are no specific months with consistently comfortable weather, but average temperatures vary throughout the year.
The colder weather is most prominent in the months of January, February, March, April, October, November and December.
Precipitation in Valle d'Aosta shows some seasonal variation. You'll find the most rain in December (147 mm (5.8 in)), while September tends to be drier (101 mm (4 in)).
Visitors hoping to maximize their time in the sun should consider planning their trip for July, when daylight hours are at their peak.