ClimateForecastSeptemberOctober >>

Average percent of sunshine in Sion

The mean percent of sunhours during the day in Sion (Canton of Valais), Switzerland.


  • The sun shines on average 65.0% in August making it the most sunny month.
  • On average, December has the lowest percentage of sunshine with 50.0%.

Forecast: is it sunny in Sion?

Mon   Sep 09
17°C | 13°C
SW 14 km/h
12 mm
overcast and rain

overcast and rain

Tue   Sep 10
21°C | 14°C
W 22 km/h
broken clouds and no rain

broken clouds and no rain

Wed   Sep 11
20°C | 12°C
W 18 km/h
9.1 mm
overcast and slight rain

overcast and slight rain

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