Average Monthly Sunshine in Sion

The graphs on this page shows the average number of hours per month and per day that Sion receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Seasonal sunshine in Sion varies. It peaks at 270 hours in July and drops to 70 hours in December. The total annual amount of sun is 2171 hours.

Daily hours of sunshine

For those who appreciate different seasons, Sion serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.0 hours of sunshine daily, and embrace the darker days in December, offering only 2.3 hours of daily sunlight.

Sion’s total hours of sunshine compared to other major cities

Sion enjoys an average of 2171 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

In contrast, Tromsø , Norway, receives only about 1270 hours of sunshine per year, known for the polar night with no sunlight for weeks during winter.

Vancouver, Canada, receives approximately 1940 hours of sunshine annually.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

Other climate information

June, Sion’s wettest month, receives 162 mm of rainfall and has a maximum daytime temperature of 17°C. During the driest month October you can expect a temperature of 10°C.

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Sion Precipitation page.