Worst air pollution Lausanne, today and tomorrow
Today (16 July): Air quality in Lausanne is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 38.1/100).
Tomorrow (17 July 2026): Air quality in Lausanne is fair. NO2 decreases to good; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 33.7/100). 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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Lausanne's air quality is generally good, benefiting from the Lake Geneva corridor and the Jura hills providing consistent westerly ventilation across this Swiss Vaud lakeside city. Vehicle traffic on the A1 motorway and the surrounding international organisation and technology sector contribute the primary local emissions, while wood burning adds seasonal PM2.5 in winter, the lake moderates extreme temperature inversions, and the Alpine climate provides clean mountain air from the south on Föhn wind events throughout the year.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
38.1/100
PM2.5 (fine particles):
Good
15.0/100
PM10 (coarse particles):
Good
6.9/100
NO2 (nitrogen dioxide):
Fair
23.3/100
O3 (ozone):
Fair
38.1/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
15.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
33.7/100
PM2.5 (fine particles):
Good
8.9/100
PM10 (coarse particles):
Good
8.7/100
NO2 (nitrogen dioxide):
Good
17.4/100
O3 (ozone):
Fair
33.7/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
6.5/100
Pollen forecast in Lausanne
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Lausanne
Frequently Asked Questions
Is air quality bad in Lausanne right now?
On 16 July 2026, overall air quality in Lausanne is fair. AQI is the main air quality indicator at 38.1/100. Pollution peaks around 12:00 PM (O3: 38.1/100).
Will air quality be worse tomorrow in Lausanne?
On 17 July 2026, air quality conditions in Lausanne will be similar to today, with AQI forecast at fair at 33.7/100. Pollution peaks around 3:00 PM (O3: 33.7/100).
When is air pollution at its worst in Lausanne?
The worst stretch for air quality at Lausanne tends to be a calm winter morning, when vehicle traffic and international commuter activity gather along the lakeshore under a layer of trapped cold air. Things generally improve from spring onward, with summer's stronger winds keeping the air clear except for the occasional hot-weather ozone peak; autumn is typically calm.
Are air quality levels in Lausanne 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