Val dʼIlliez Weather & Climate: Best Time to Visit

In Val dʼIlliez, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a pleasant 20°C (68°F) in July. In January, the coolest month of the year, temperatures drop to a very cold 0°C (32°F).

At night, temperatures range from around 9°C (48°F) in July to -9°C (16°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Val dʼIlliez experiences significant rain/snowfall throughout the year, averaging 1850 mm (73 in) of precipitation annually. Despite minor fluctuations, Val dʼIlliez enjoys fairly consistent precipitation throughout the year. In June, you can expect around 201 mm (7.9 in) of precipitation, while in October, Val dʼIlliez receives about 123 mm (4.8 in). For more details, please visit our Val dʼIlliez Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Val dʼIlliez can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.2 hours of sunshine daily. In contrast, the city experiences much darker days in January, with only 2.3 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine