Worst air pollution Ajaccio, today and tomorrow
Today (16 July): Air quality in Ajaccio 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: 32.4/100).
Tomorrow (17 July 2026): Air quality in Ajaccio is fair. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 32.6/100). 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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Ajaccio's air quality benefits from its exceptional Mediterranean coastal position in the Gulf of Ajaccio, with consistent sea breezes from the Tyrrhenian and Mediterranean providing reliable maritime ventilation around this Corsican capital. Vehicle traffic on the T10 and seasonal tourism traffic are the primary local sources, while the surrounding Monte Cinto and Corsican highland massif create dramatic topographic variation and the island's outstanding Mediterranean exposure generally maintains excellent conditions on most days.
Today - 16 July | Pollution peaks at 17:00
AQI:
Fair
32.4/100
PM2.5 (fine particles):
Good
12.0/100
PM10 (coarse particles):
Good
10.5/100
NO2 (nitrogen dioxide):
Good
1.8/100
O3 (ozone):
Fair
32.4/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.2/100
PM1 (ultrafine particles):
Good
7.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Fair
32.6/100
PM2.5 (fine particles):
Good
13.7/100
PM10 (coarse particles):
Good
12.9/100
NO2 (nitrogen dioxide):
Good
1.9/100
O3 (ozone):
Fair
32.6/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
13.9/100
PM1 (ultrafine particles):
Good
7.3/100
Pollen forecast in Ajaccio
View pollen forecastFrequently Asked Questions
Is air quality bad in Ajaccio right now?
On 16 July 2026, overall air quality in Ajaccio is fair. AQI is the main air quality indicator at 32.4/100. Pollution peaks around 5:00 PM (O3: 32.4/100).
Will air quality be worse tomorrow in Ajaccio?
On 17 July 2026, air quality conditions in Ajaccio will be similar to today, with AQI forecast at fair at 32.6/100. Pollution peaks around 1:00 PM (O3: 32.6/100).
When is air pollution at its worst in Ajaccio?
In Ajaccio, the worst combined pollen and air quality days tend to come when seasonal tourism traffic coincide with the peak pine and chestnut pollen season in spring; coastal sea breezes ventilate the island reliably, so conditions usually improve within a day or two.
Are air quality levels in Ajaccio 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 France?
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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