Worst air pollution Serre Chevalier, today and tomorrow

Today (21 July): Air quality in Serre Chevalier is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 39.0/100).
Tomorrow (22 July 2026): Air quality in Serre Chevalier is fair. All pollutants stay as today. Pollution peaks around 7:00 PM (O3: 39.5/100). 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

Use our Strava plugin to check your own exposure.

Serre Chevalier's air quality is shaped mainly by tourist traffic and coastal industry, with its position near the Durance playing a role, though the Mistral wind provides powerful periodic ventilation, which usually keeps pollution from accumulating for long. Summer brings the greatest risk of ozone build-up, as calm, hot anticyclonic conditions persist for days between Mistral episodes; winter is generally cleaner and better ventilated.

Today - 21 July | Pollution peaks at 15:00

AQI:

Fair

39.0/100

PM2.5 (fine particles):

Good

7.9/100

PM10 (coarse particles):

Good

3.2/100

NO2 (nitrogen dioxide):

Good

7.1/100

O3 (ozone):

Fair

39.0/100

SO2 (sulfur dioxide):

Good

0.6/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.0/100

PM1 (ultrafine particles):

Good

7.9/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 19:00

AQI:

Fair

39.5/100

PM2.5 (fine particles):

Good

3.9/100

PM10 (coarse particles):

Good

1.4/100

NO2 (nitrogen dioxide):

Good

7.0/100

O3 (ozone):

Fair

39.5/100

SO2 (sulfur dioxide):

Good

1.0/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.6/100

PM1 (ultrafine particles):

Good

3.4/100

Pollen forecast in Serre Chevalier

View pollen forecast

Frequently Asked Questions

Is air quality bad in Serre Chevalier right now?

On 21 July 2026, overall air quality in Serre Chevalier is fair. AQI is the main air quality indicator at 39.0/100. Pollution peaks around 3:00 PM (O3: 39.0/100).

Will air quality be worse tomorrow in Serre Chevalier?

On 22 July 2026, air quality conditions in Serre Chevalier will be similar to today, with AQI forecast at fair at 39.5/100. Pollution peaks around 7:00 PM (O3: 39.5/100).

When is air pollution at its worst in Serre Chevalier?

For people sensitive to both pollen and pollution in Serre Chevalier, spring days combining tourist traffic and coastal industry with the plane and pine peak are the ones to watch; the Mistral wind provides powerful periodic ventilation, which tends to clear things fairly quickly.

Are air quality levels in Serre Chevalier 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.

Want to see air quality forecasts for other cities in France?

Check air quality in other popular cities:

Data provided by Airmine — Last update: 21 July 2026 at 05:44 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