Sion Airport

Sion District, Canton du Valais, Switzerland

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Current Weather

26°

Mostly Cloudy

Feels Like: 27°

Min: 17°

Max: 27°

The next few hours will be clear, with today reaching 27°C and dropping to 16°C. The coming days will be drizzle

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Hourly Forecast

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Daylight Hours

07:30

Sunrise

19:11

Sunset

11 hours 41 minutes of sunlight today

Moon

Full Moon

19:00

Moonrise

06:59

Moonset

Daily Forecast

Today

17°
27°

Sunday

16°
29°

Monday

17°
29°

Tuesday

17°
27°

Wednesday

15°
25°

Thursday

13°
26°

Friday

17°
24°

Saturday

15°
23°

Sunday

13°
22°

Monday

13°
23°

Air Quality Data Available

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UV Index

Wear sunscreen
5 Moderate
Low Extreme

Humidity

22% Very Dry
Low High

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Weather in Sion Airport today, September 26, 2026

Conditions in Sion Airport on September 26, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting.

The temperature range runs from about 17°C up to 27°C. Expect humidity between 18% and 44%, most humid near 21:00. Expect gentle winds, highest near 16:00 at 2.3 km/h.

Afternoon skies stay clogged, peaking close to 64% near 13:00. The grey theme continues rather than clearing out. Visibility holds near 50.4 km, though it can fall to 42.7 km. Sunrise is at 07:30 and sunset at 19:11, giving 11 hours 41 minutes of sunlight today.

Overall, Sion Airport on September 26, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 27°C.

Frequently asked questions about weather in Sion Airport

How warm does it get in Sion Airport?

The warmest month in Sion Airport is July, with average high temperatures of 20°C. The average temperature during this period is around 14°C.

How cold does it get in Sion Airport?

The coldest month in Sion Airport is January, with average low temperatures of -11°C. The average temperature during this period is around -7°C.

What is the wettest time of year in Sion Airport?

The wettest month in Sion Airport is May, with an average of 188mm of precipitation.

What is the driest time of year in Sion Airport?

The driest month in Sion Airport is February, with an average of 102mm of precipitation.

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Metric (°C, km/h)