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  3. Valais
  4. Sion

Sion

Sion, Valais

2026-02-17 12:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
4.6
O3
μg/m³
48.5
NO2
μg/m³
17.9
PM10
μg/m³
8
Weather
  • ℃
  • ℉
6℃
79%
4 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Allergy Risk
  • PM2.5
  • O3
  • NO2
  • PM10
  • Alder
  • Ragweed
  • Mugwort
  • Birch
  • Olive Tree
  • Grasses
Data Sources
http://www.polleninfo.org

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