Worst air pollution Bernina Express Viewpoint - St. Moritz, today and tomorrow
Today (16 July): Air quality in Bernina Express Viewpoint is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 PM (O3: 40.8/100).
Tomorrow (17 July 2026): Air quality in Bernina Express Viewpoint is medium. All pollutants stay as today. Pollution peaks around 9:00 AM (O3: 41.0/100). 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 Bernina Express route's air quality benefits from its high Engadin valley setting, with the historic rail line itself the only significant local traffic source amid pristine mountain conditions.
Today - 16 July | Pollution peaks at 19:00
AQI:
Medium
40.8/100
PM2.5 (fine particles):
Good
5.1/100
PM10 (coarse particles):
Good
1.8/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Medium
40.8/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
4.2/100
PM1 (ultrafine particles):
Good
6.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 09:00
AQI:
Medium
41.0/100
PM2.5 (fine particles):
Good
8.2/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Medium
41.0/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
4.8/100
PM1 (ultrafine particles):
Good
10.0/100
Other Landmarks in St. Moritz
Sports venues in St. Moritz
Frequently Asked Questions
Is air quality bad in Bernina Express Viewpoint right now?
On 16 July 2026, overall air quality in Bernina Express Viewpoint is medium. AQI is the main air quality indicator at 40.8/100. Pollution peaks around 7:00 PM (O3: 40.8/100).
Will air quality be worse tomorrow in Bernina Express Viewpoint?
On 17 July 2026, air quality conditions in Bernina Express Viewpoint will be similar to today, with AQI forecast at medium at 41.0/100. Pollution peaks around 9:00 AM (O3: 41.0/100).
When is air pollution at its worst in Bernina Express Viewpoint?
High above the valley floor, Bernina Express Viewpoint sees essentially no meaningful pollution outside of brief peak-season spikes tied to seasonal tourist and cable car traffic. The rest of the year, elevation and sparse development keep readings among the cleanest anywhere in the country.
Are air quality levels in Bernina 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