Highest air pollution Marseille, today and tomorrow
Today (1 July): Air quality in Marseille is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 PM (O3: 39.1/100).
Tomorrow (2 July 2026): Air quality in Marseille is fair. NO2 decreases to good; all other pollutants stay as today. Pollution peaks around 4:00 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
Marseille's air quality is shaped by the Mistral wind that periodically delivers powerful clean air from the Rhône valley, producing some of France's clearest conditions. However, the city's industrial petrochemical complex at Fos-sur-Mer to the west and heavy port traffic contribute elevated SO₂ and PM2.5, while calm summer periods without the Mistral allow traffic emissions to accumulate.
Today - 1 July | Pollution peaks at 20:00
AQI:
Fair
39.1/100
PM2.5 (fine particles):
Good
13.1/100
PM10 (coarse particles):
Good
5.1/100
NO2 (nitrogen dioxide):
Fair
26.0/100
O3 (ozone):
Fair
39.1/100
SO2 (sulfur dioxide):
Good
6.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
9.8/100
Levels show the poorest local air quality during the day
Tomorrow - 2 July | Pollution peaks at 16:00
AQI:
Fair
39.5/100
PM2.5 (fine particles):
Good
6.2/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Good
6.4/100
O3 (ozone):
Fair
39.5/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.9/100
PM1 (ultrafine particles):
Good
5.6/100
Pollen forecast in Marseille
View pollen forecastFrequently Asked Questions
Is air quality bad in Marseille right now?
On 1 July 2026, overall air quality in Marseille is fair. AQI is the main air quality indicator at 39.1/100. Pollution peaks around 8:00 PM (O3: 39.1/100).
Will air quality be worse tomorrow in Marseille?
On 2 July 2026, air quality conditions in Marseille will be similar to today, with AQI forecast at fair at 39.5/100. Pollution peaks around 4:00 PM (O3: 39.5/100).
Are air quality levels in Marseille 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: 1 July 2026 at 01:02 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team