Sion weather in May (Canton of Valais, Switzerland)
People don't tend to visit Sion in May since it is known as a chilly month.
The average maximum daytime temperature in Sion in May lies at 8.9°C (48.02°F).
The average minimum temperature goes down to around 2.1°C (35.78°F) (often the minimum temperature is noted at night).
May is part of the rainy season with an average precipitation of 192mm (7.5 inches). There are generally around 18 rainy days. If you enjoy blue skies and sunshine, then this is a great time to go to Sion with 230 hours of sun during the entire month.
Sion, monthly averages in May
Where to stay in Sion
Where to go in Switzerland in MayFind out more about the weather in Switzerland in May and which places have the best weather conditions in this month.
What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in May.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Sion.
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