Worst air pollution St. Moritz Dorf - St. Moritz, today and tomorrow
Today (16 July): Air quality in St. Moritz Dorf is poor. AQI and NO2 are poor; PM2.5 and PM1 are fair; O3 is medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 3:00 AM (NO2: 76.2/100).
Tomorrow (17 July 2026): Air quality in St. Moritz Dorf is poor. PM10 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 AM (NO2: 61.1/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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St. Moritz Dorf's air quality benefits from its high Engadin valley position above 1,800 metres, with winter luxury tourism traffic the primary seasonal source amid otherwise exceptionally clean mountain air.
Today - 16 July | Pollution peaks at 03:00
AQI:
Poor
76.2/100
PM2.5 (fine particles):
Fair
23.8/100
PM10 (coarse particles):
Good
8.4/100
NO2 (nitrogen dioxide):
Poor
76.2/100
O3 (ozone):
Medium
40.8/100
SO2 (sulfur dioxide):
Good
7.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.2/100
PM1 (ultrafine particles):
Fair
28.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 06:00
AQI:
Poor
61.1/100
PM2.5 (fine particles):
Fair
36.7/100
PM10 (coarse particles):
Fair
25.3/100
NO2 (nitrogen dioxide):
Poor
61.1/100
O3 (ozone):
Medium
41.0/100
SO2 (sulfur dioxide):
Good
11.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.8/100
PM1 (ultrafine particles):
Fair
39.5/100
Other Landmarks in St. Moritz
Sports venues in St. Moritz
Frequently Asked Questions
Is air quality bad in St. Moritz Dorf right now?
On 16 July 2026, overall air quality in St. Moritz Dorf is poor. AQI is the main air quality indicator at 76.2/100. Pollution peaks around 3:00 AM (NO2: 76.2/100).
Will air quality be worse tomorrow in St. Moritz Dorf?
On 17 July 2026, air quality conditions in St. Moritz Dorf will be similar to today, with AQI forecast at poor at 61.1/100. Pollution peaks around 6:00 AM (NO2: 61.1/100).
When is air pollution at its worst in St. Moritz Dorf?
St. Moritz Dorf's remote valley position means poor air quality is rare, with only a brief peak-season dip driven by winter tourism and seasonal traffic. The rest of the year, limited development and steady mountain airflow keep conditions reliably excellent.
Are air quality levels in St. Moritz Dorf 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