Worst air pollution Morlaix, today and tomorrow

Today (21 July): Air quality in Morlaix is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 28.8/100).
Tomorrow (22 July 2026): Air quality in Morlaix is fair. All pollutants stay as today. Pollution peaks around 8:00 PM (O3: 31.7/100). 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.

Morlaix experiences air quality shaped by fishing-port and coastal traffic, in a setting close to the Vilaine, though Atlantic sea breezes ventilate the coast reliably, which usually keeps pollution from accumulating for long. Air quality remains consistently good throughout the year, with near-constant Atlantic winds preventing the build-up seen in more sheltered inland regions, even in summer.

Today - 21 July | Pollution peaks at 17:00

AQI:

Fair

28.8/100

PM2.5 (fine particles):

Good

7.6/100

PM10 (coarse particles):

Good

2.8/100

NO2 (nitrogen dioxide):

Good

2.8/100

O3 (ozone):

Fair

28.8/100

SO2 (sulfur dioxide):

Good

0.6/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.5/100

PM1 (ultrafine particles):

Good

4.7/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 20:00

AQI:

Fair

31.7/100

PM2.5 (fine particles):

Good

5.8/100

PM10 (coarse particles):

Good

2.0/100

NO2 (nitrogen dioxide):

Good

3.1/100

O3 (ozone):

Fair

31.7/100

SO2 (sulfur dioxide):

Good

0.7/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.8/100

PM1 (ultrafine particles):

Good

6.1/100

Pollen forecast in Morlaix

View pollen forecast

Frequently Asked Questions

Is air quality bad in Morlaix right now?

On 21 July 2026, overall air quality in Morlaix is fair. AQI is the main air quality indicator at 28.8/100. Pollution peaks around 5:00 PM (O3: 28.8/100).

Will air quality be worse tomorrow in Morlaix?

On 22 July 2026, air quality conditions in Morlaix will be similar to today, with AQI forecast at fair at 31.7/100. Pollution peaks around 8:00 PM (O3: 31.7/100).

When is air pollution at its worst in Morlaix?

Residents in Morlaix tend to notice the most discomfort when fishing-port and coastal traffic build up alongside the spring peak in birch and oak pollen; Atlantic sea breezes ventilate the coast reliably, which typically keeps things from getting worse for long. Nearby Breton dairy pasture and coastal farmland add a further seasonal factor.

Are air quality levels in Morlaix 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