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

	daytime	15.6 h
	sunny / overcast hours	7 / 8.6
	average monthly precipitation	49 mm

Best time with the soft weather for the sightseeing and long walks in Sion are May, June, July, August, September.

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.

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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.