Worst air pollution Delémont, today and tomorrow
Today (16 July): Air quality in Delémont is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 43.3/100).
Tomorrow (17 July 2026): Air quality in Delémont is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 30.9/100). 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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Delémont's air quality benefits from its Sorne valley position in the Jura Mountains, with vehicle traffic on the A16 motorway the primary local source amid the generally clean, forested Jura terrain.
Today - 16 July | Pollution peaks at 14:00
AQI:
Medium
43.3/100
PM2.5 (fine particles):
Good
12.3/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Fair
23.6/100
O3 (ozone):
Medium
43.3/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.8/100
PM1 (ultrafine particles):
Good
14.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
30.9/100
PM2.5 (fine particles):
Good
7.8/100
PM10 (coarse particles):
Good
4.0/100
NO2 (nitrogen dioxide):
Fair
22.7/100
O3 (ozone):
Fair
30.9/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
8.3/100
Pollen forecast in Delémont
View pollen forecastFrequently Asked Questions
Is air quality bad in Delémont right now?
On 16 July 2026, overall air quality in Delémont is fair. NO2 is the main pollutant at 23.6/100. Pollution peaks around 2:00 PM (O3: 43.3/100).
Will air quality be worse tomorrow in Delémont?
On 17 July 2026, air quality conditions in Delémont will be similar to today, with AQI forecast at fair at 30.9/100. Pollution peaks around 3:00 PM (O3: 30.9/100).
When is air pollution at its worst in Delémont?
Delémont sees its worst air quality on windless winter mornings, when vehicle traffic and farmland activity pool across the open terrain under conditions typical of this Mittelland setting. Things generally improve from spring onward, as winds move more freely across the open Mittelland, save for an occasional hot-weather ozone peak; autumn stays mostly calm.
Are air quality levels in Delémont 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