Worst air pollution La Rochelle, today and tomorrow
Today (16 July): Air quality in La Rochelle is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 38.9/100).
Tomorrow (17 July 2026): Air quality in La Rochelle is fair. All pollutants stay as today. Pollution peaks around 4:00 PM (O3: 32.3/100). 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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La Rochelle's air quality benefits from its exceptional Atlantic Ocean and Pertuis Charentais coastal position, with consistent Atlantic westerlies providing reliable maritime ventilation across this major French Atlantic port. Vehicle traffic on the A10 and surrounding port and tourism operations are the primary local sources, while the open Atlantic coastline and the Île de Ré's protective barrier generally maintain La Rochelle among western France's cleaner urban environments throughout most of the year.
Today - 16 July | Pollution peaks at 13:00
AQI:
Fair
38.9/100
PM2.5 (fine particles):
Good
6.0/100
PM10 (coarse particles):
Good
2.3/100
NO2 (nitrogen dioxide):
Good
16.3/100
O3 (ozone):
Fair
38.9/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.2/100
PM1 (ultrafine particles):
Good
6.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Fair
32.3/100
PM2.5 (fine particles):
Good
6.2/100
PM10 (coarse particles):
Good
2.4/100
NO2 (nitrogen dioxide):
Good
5.5/100
O3 (ozone):
Fair
32.3/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
6.1/100
Pollen forecast in La Rochelle
View pollen forecastFrequently Asked Questions
Is air quality bad in La Rochelle right now?
On 16 July 2026, overall air quality in La Rochelle is fair. AQI is the main air quality indicator at 38.9/100. Pollution peaks around 1:00 PM (O3: 38.9/100).
Will air quality be worse tomorrow in La Rochelle?
On 17 July 2026, air quality conditions in La Rochelle will be similar to today, with AQI forecast at fair at 32.3/100. Pollution peaks around 4:00 PM (O3: 32.3/100).
When is air pollution at its worst in La Rochelle?
La Rochelle's toughest days for allergy and air quality sufferers alike are usually calm, dry ones when port traffic and light industry overlap with the oak and plane pollen peak; Atlantic westerlies ventilate the region regularly, offering fairly regular relief.
Are air quality levels in La Rochelle 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