Worst air pollution Arles, today and tomorrow
Today (20 September): Air quality in Arles is fair. AQI, PM2.5, NO2, and O3 are fair; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (NO2: 31.8/100).
Tomorrow (21 September 2026): Air quality in Arles is fair. PM2.5 decreases to good; NO2 decreases to good; all other pollutants stay as today. Pollution peaks around 12:00 AM (O3: 21.4/100). Airmine updates local air quality forecasts four times daily.
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Arles's air quality benefits from the Camargue Rhône delta position, with the Mistral wind periodically delivering powerful clean air from the north providing some of France's most dramatic natural ventilation events. Vehicle traffic on the A54 motorway and surrounding agri-food and tourism operations are the primary local sources, while the flat Camargue wetland landscape and the Mistral's frequent occurrence generally maintain Arles among the Languedoc-Provence region's more moderately ventilated urban environments on most days.
Today - 20 September | Pollution peaks at 08:00
AQI:
Fair
31.8/100
PM2.5 (fine particles):
Fair
20.6/100
PM10 (coarse particles):
Good
10.7/100
NO2 (nitrogen dioxide):
Fair
31.8/100
O3 (ozone):
Fair
25.6/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.8/100
HCHO (formaldehyde):
Good
6.4/100
PM1 (ultrafine particles):
Good
8.5/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 00:00
AQI:
Fair
21.4/100
PM2.5 (fine particles):
Good
17.5/100
PM10 (coarse particles):
Good
11.6/100
NO2 (nitrogen dioxide):
Good
12.8/100
O3 (ozone):
Fair
21.4/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
4.8/100
PM1 (ultrafine particles):
Good
3.7/100
Pollen forecast in Arles
View pollen forecastFrequently Asked Questions
Is air quality bad in Arles right now?
On 20 September 2026, overall air quality in Arles is fair. AQI is the main air quality indicator at 31.8/100. Pollution peaks around 8:00 AM (NO2: 31.8/100).
Will air quality be worse tomorrow in Arles?
On 21 September 2026, air quality conditions in Arles will be similar to today, with AQI forecast at fair at 21.4/100. Pollution peaks around 12:00 AM (O3: 21.4/100).
When is air pollution at its worst in Arles?
In Arles, the combination of tourist traffic and coastal industry and heavy plane and pine pollen in spring is what most affects sensitive groups; the Mistral wind provides powerful periodic ventilation, so poor conditions rarely last more than a couple of days.
Are air quality levels in Arles 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.
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Data provided by Airmine — Last update: 20 September 2026 at 14:33 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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