Worst air pollution Glacier Express Viewpoint - Zermatt, today and tomorrow
Today (16 July): Air quality in Glacier Express Viewpoint is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 38.0/100).
Tomorrow (17 July 2026): Air quality in Glacier Express Viewpoint is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 36.1/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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The Glacier Express route's air quality benefits from its high Alpine setting near Zermatt, with the rail line and cog railway the only significant local traffic sources amid clean mountain air.
Today - 16 July | Pollution peaks at 17:00
AQI:
Fair
38.0/100
PM2.5 (fine particles):
Good
5.5/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
38.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
2.5/100
PM1 (ultrafine particles):
Good
5.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
36.1/100
PM2.5 (fine particles):
Good
5.1/100
PM10 (coarse particles):
Good
5.5/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Fair
36.1/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
2.4/100
Other Landmarks in Zermatt
Sports venues in Zermatt
Frequently Asked Questions
Is air quality bad in Glacier Express Viewpoint right now?
On 16 July 2026, overall air quality in Glacier Express Viewpoint is fair. AQI is the main air quality indicator at 38.0/100. Pollution peaks around 5:00 PM (O3: 38.0/100).
Will air quality be worse tomorrow in Glacier Express Viewpoint?
On 17 July 2026, air quality conditions in Glacier Express Viewpoint will be similar to today, with AQI forecast at fair at 36.1/100. Pollution peaks around 3:00 PM (O3: 36.1/100).
When is air pollution at its worst in Glacier Express Viewpoint?
At Glacier Express Viewpoint, poor air quality is essentially a non-issue outside of the busiest tourist weeks, when seasonal tourist and cable car traffic briefly nudges emissions upward in an otherwise pristine high-altitude setting. The rest of the year, minimal population and constant mountain airflow keep conditions consistently excellent, among the best readings recorded anywhere in the country.
Are air quality levels in Glacier Express Viewpoint based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Want to see air quality forecasts for other cities in Switzerland?
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app