Worst air pollution La Chaux-de-Fonds, today and tomorrow
Today (16 July): Air quality in La Chaux-de-Fonds is medium. AQI, NO2, and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 44.3/100).
Tomorrow (17 July 2026): Air quality in La Chaux-de-Fonds is fair. AQI worsens to fair; NO2 increases to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 AM (NO2: 35.0/100). 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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La Chaux-de-Fonds' air quality benefits from its elevated Jura plateau position, one of Europe's highest cities, with vehicle traffic and legacy watchmaking industry the primary local sources amid cool mountain air.
Today - 16 July | Pollution peaks at 13:00
AQI:
Medium
44.3/100
PM2.5 (fine particles):
Good
16.0/100
PM10 (coarse particles):
Good
6.8/100
NO2 (nitrogen dioxide):
Medium
41.8/100
O3 (ozone):
Medium
44.3/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
18.7/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 02:00
AQI:
Fair
35.0/100
PM2.5 (fine particles):
Good
9.8/100
PM10 (coarse particles):
Good
6.1/100
NO2 (nitrogen dioxide):
Fair
35.0/100
O3 (ozone):
Fair
31.4/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.9/100
PM1 (ultrafine particles):
Good
8.7/100
Pollen forecast in La Chaux-de-Fonds
View pollen forecastFrequently Asked Questions
Is air quality bad in La Chaux-de-Fonds right now?
On 16 July 2026, overall air quality in La Chaux-de-Fonds is medium. AQI is the main air quality indicator at 44.3/100. Pollution peaks around 1:00 PM (O3: 44.3/100).
Will air quality be worse tomorrow in La Chaux-de-Fonds?
On 17 July 2026, air quality conditions in La Chaux-de-Fonds will be worse than today, with AQI forecast at fair at 35.0/100. Pollution peaks around 2:00 AM (NO2: 35.0/100).
When is air pollution at its worst in La Chaux-de-Fonds?
Air quality at La Chaux-de-Fonds dips most on still winter mornings, when vehicle traffic and farmland activity settle over the rolling farmland and linger under a shallow layer of cold air. Warmer months bring noticeably better airflow across the open terrain, with only the occasional summer ozone spike breaking an otherwise clean pattern through spring and autumn.
Are air quality levels in La Chaux-de-Fonds 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.
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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