Worst air pollution Ouchy - Lausanne, today and tomorrow
Today (30 August): Air quality in Ouchy is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 27.0/100).
Tomorrow (31 August 2026): Air quality in Ouchy is fair. All pollutants stay as today. Pollution peaks around 5:00 PM (O3: 25.8/100). Airmine updates local air quality forecasts four times daily.
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Ouchy's air quality benefits from its Lake Geneva harbourside position, with lake breezes providing reliable ventilation. Tourist and ferry traffic contribute modest local emissions to this popular lakeside quarter.
Today - 30 August | Pollution peaks at 11:00
AQI:
Fair
27.0/100
PM2.5 (fine particles):
Good
6.7/100
PM10 (coarse particles):
Good
2.2/100
NO2 (nitrogen dioxide):
Fair
26.6/100
O3 (ozone):
Fair
27.0/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.0/100
PM1 (ultrafine particles):
Good
8.5/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 17:00
AQI:
Fair
25.8/100
PM2.5 (fine particles):
Good
6.4/100
PM10 (coarse particles):
Good
2.0/100
NO2 (nitrogen dioxide):
Fair
24.9/100
O3 (ozone):
Fair
25.8/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.5/100
PM1 (ultrafine particles):
Good
7.5/100
Other Landmarks in Lausanne
Frequently Asked Questions
Is air quality bad in Ouchy right now?
On 30 August 2026, overall air quality in Ouchy is fair. AQI is the main air quality indicator at 27.0/100. Pollution peaks around 11:00 AM (O3: 27.0/100).
Will air quality be worse tomorrow in Ouchy?
On 31 August 2026, air quality conditions in Ouchy will be similar to today, with AQI forecast at fair at 25.8/100. Pollution peaks around 5:00 PM (O3: 25.8/100).
When is air pollution at its worst in Ouchy?
The worst stretch for air quality at Ouchy 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. Summer usually brings much better dispersion, aside from the odd ozone spike during a hot, still afternoon, and spring and autumn tend to be the steadiest months.
Are air quality levels in Ouchy 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 30 August 2026 at 14:32 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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