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Air quality in Sion
Air quality index (AQI) and PM2.5 air pollution in Sion
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Sion Air Quality Map
Real-time Sion air pollution map
AIR QUALITY DATA CONTRIBUTORS
3 Contributors
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Pollen
What is the pollen count in Sion today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Sion?
| Weather | Scattered clouds |
| Temperature | 57.2°F |
| Humidity | 82% |
| Wind | 2.3 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time Switzerland city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Zurich, Zurich | 31 |
| 2 | Santa Maria in Calanca, Grisons | 19 |
| 3 | Chur, Grisons | 16 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Sion aqi ranking
Real-time Sion air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Sion - Aéroport | 22 |
(local time)
SEE WORLD AQI RANKING
US AQI
22
live AQI index
Good
Overview
What is the current air quality in Sion?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 22 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4µg/m³ | |
| PM10 | 5µg/m³ | |
| O3 | 37µg/m³ | |
| NO2 | 8µg/m³ | |
✓
PM2.5 concentration in Sion air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Sion?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Sion air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Thursday, May 30 | Good 35 AQI US |  | 66.2° 55.4° |  4.5 mp/h |
| Friday, May 31 | Good 29 AQI US | | 53.6° 48.2° | 4.5 mp/h |
| Saturday, Jun 1 | Good 25 AQI US | | 62.6° 50° | 4.5 mp/h |
| Today | Good 22 AQI US | 100% | 66.2° 51.8° | 4.5 mp/h |
| Monday, Jun 3 | Good 24 AQI US | 70% | 60.8° 55.4° | 2.2 mp/h |
| Tuesday, Jun 4 | Good 50 AQI US | 100% | 71.6° 51.8° | 4.5 mp/h |
| Wednesday, Jun 5 | Moderate 51 AQI US  |  | 77° 55.4° | 4.5 mp/h |
| Thursday, Jun 6 | Moderate 63 AQI US |  | 80.6° 57.2° | 4.5 mp/h |
| Friday, Jun 7 | Moderate 70 AQI US | 90% | 86° 64.4° | 4.5 mp/h |
| Saturday, Jun 8 | Moderate 70 AQI US | 90% | 82.4° 64.4° | 4.5 mp/h |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Sion air quality data attribution
3Contributors
- Canton of Valais
1 station
- Bundesamt für Umwelt BAFU (Schweiz)
1 station
- Transalp'AIR
1 station
3 Government Contributors
3 Data sources
Where is the cleanest air quality in Sion?
AQI US, Metric