Sion Weather May
To help you choose the best time to travel, you can find climate data below on the weather in Sion in May.
|average daily high||+21°C|
|average daily low||+8.7°C|
|sunny / overcast hours||7 / 8.6|
|average monthly precipitation||49 mm|
Temperature in Sion
In May the average daily maximum in Sion is +21°C, and the minimum +8.7°C.
The hottest May day on record is +35.1°C, and the coldest -2.2°C.
Best beach resorts in May:
There are 15.6 hours of daylight in Sion in May. Out of these, on average 7 are sunny, which means it is mostly cloudy.
The amount of precipitation in Sion in May is usually 49 mm, a negligible amount.