WorldArrow icon
Arrow iconValais

Air quality in Valais

Air quality index (AQI⁺) and PM2.5 air pollution in Valais • 09:28, May 11

Live most polluted city ranking

Real-time Valais most polluted city ranking

#CitiesAQI⁺ US
1
The national flag of Switzerland

Montana

40

2
The national flag of Switzerland

Charrat

39

3
The national flag of Switzerland

Visp

39

4
The national flag of Switzerland

Baltschieder

37

5
The national flag of Switzerland

Saint-Maurice

37

6
The national flag of Switzerland

Sitten

35

7
The national flag of Switzerland

Sion

33

8
The national flag of Switzerland

Zermatt

11

9
The national flag of Switzerland

Martigny-Combe

0

10
The national flag of Switzerland

Sierre

0

Live cleanest city ranking

Real-time Valais cleanest city ranking

#CitiesAQI⁺ US
1
The national flag of Switzerland

Martigny-Combe

0

2
The national flag of Switzerland

Sierre

0

3
The national flag of Switzerland

Veyras

0

4
The national flag of Switzerland

Zermatt

11

5
The national flag of Switzerland

Sion

33

6
The national flag of Switzerland

Sitten

35

7
The national flag of Switzerland

Baltschieder

37

8
The national flag of Switzerland

Saint-Maurice

37

9
The national flag of Switzerland

Charrat

39

10
The national flag of Switzerland

Visp

39

Forest wildfire sending thick smoke into the sky
external link icon

Wildfire Map Spotlight: Max Road Miramar Fire, Florida

Students participating in an EarthMuseum Learn classroom activity.
external link icon

Revealing the Invisible: EarthMuseum Learn connects classrooms through air quality data

Polluted skies over Hanoi.
external link icon

May 10, 2026: Hanoi among top 10 most polluted cities in the world

Which is the most polluted city in Valais?