Worst air pollution St. Georgen - Sankt Gallen, today and tomorrow
Today (16 July): Air quality in St. Georgen is fair. PM2.5 and PM1 are fair; AQI, NO2, and O3 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 2:00 PM (O3: 46.8/100).
Tomorrow (17 July 2026): Air quality in St. Georgen is fair. PM2.5 decreases to good; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 AM (NO2: 41.3/100). 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
Use our Strava plugin to check your own exposure.
St. Georgen's air quality reflects its southern Sankt Gallen residential position near the university, with vehicle traffic on surrounding streets contributing modest local emissions in this elevated foothill district.
Today - 16 July | Pollution peaks at 14:00
AQI:
Medium
46.8/100
PM2.5 (fine particles):
Fair
25.1/100
PM10 (coarse particles):
Good
8.2/100
NO2 (nitrogen dioxide):
Medium
40.5/100
O3 (ozone):
Medium
46.8/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.7/100
PM1 (ultrafine particles):
Fair
29.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 05:00
AQI:
Medium
41.3/100
PM2.5 (fine particles):
Good
19.0/100
PM10 (coarse particles):
Good
7.2/100
NO2 (nitrogen dioxide):
Medium
41.3/100
O3 (ozone):
Fair
37.9/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.6/100
PM1 (ultrafine particles):
Fair
23.0/100
Other Landmarks in Sankt Gallen
Sports venues in Sankt Gallen
Frequently Asked Questions
Is air quality bad in St. Georgen right now?
On 16 July 2026, overall air quality in St. Georgen is fair. PM1 is the main pollutant at 29.1/100. Pollution peaks around 2:00 PM (O3: 46.8/100).
Will air quality be worse tomorrow in St. Georgen?
On 17 July 2026, air quality conditions in St. Georgen will be similar to today, with O3 forecast at fair at 37.9/100. Pollution peaks around 5:00 AM (NO2: 41.3/100).
When is air pollution at its worst in St. Georgen?
The worst stretch for air quality at St. Georgen tends to arrive on a calm winter day, as vehicle traffic and light industry gather along the valley floor beneath the nearby hills. Once spring arrives, dispersion improves steadily along the valley floor, and summer stays largely clear except during rare heatwaves; autumn tends to be comparatively mild.
Are air quality levels in St. Georgen 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?
Check air quality in other popular cities:
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