Worst air pollution Zytglogge - Bern, today and tomorrow
Today (16 July): Air quality in Zytglogge is medium. AQI, NO2, and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (NO2: 51.8/100).
Tomorrow (17 July 2026): Air quality in Zytglogge is fair. O3 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 AM (NO2: 47.3/100). 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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Zytglogge's air quality reflects Bern's dense medieval core, with pedestrian arcades limiting through-traffic while surrounding streets and the Aare gorge's setting concentrate emissions somewhat under calm conditions.
Today - 16 July | Pollution peaks at 23:00
AQI:
Medium
51.8/100
PM2.5 (fine particles):
Good
14.0/100
PM10 (coarse particles):
Good
7.4/100
NO2 (nitrogen dioxide):
Medium
51.8/100
O3 (ozone):
Medium
40.0/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.2/100
PM1 (ultrafine particles):
Good
13.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 00:00
AQI:
Medium
47.3/100
PM2.5 (fine particles):
Good
11.3/100
PM10 (coarse particles):
Good
8.1/100
NO2 (nitrogen dioxide):
Medium
47.3/100
O3 (ozone):
Fair
34.4/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.6/100
PM1 (ultrafine particles):
Good
12.4/100
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Frequently Asked Questions
Is air quality bad in Zytglogge right now?
On 16 July 2026, overall air quality in Zytglogge is medium. AQI is the main air quality indicator at 51.8/100. Pollution peaks around 11:00 PM (NO2: 51.8/100).
Will air quality be worse tomorrow in Zytglogge?
On 17 July 2026, air quality conditions in Zytglogge will be worse than today, with O3 forecast at fair at 34.4/100. Pollution peaks around 12:00 AM (NO2: 47.3/100).
When is air pollution at its worst in Zytglogge?
Zytglogge sees its worst air quality when winter calm lets vehicle traffic and administrative and commuter activity pool along the Aare, held in by the valley's enclosing terrain. The rest of the year sees much better conditions in the valley, with summer's ozone spikes limited to the hottest, stillest days, and autumn generally reliable.
Are air quality levels in Zytglogge 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