Worst air pollution Le Castellet, today and tomorrow

On 21 July 2026, overall air quality in Le Castellet is medium. AQI is the main air quality indicator at 58.6/100. Pollution peaks around 3:00 PM (O3: 58.6/100).

On 22 July 2026, air quality conditions in Le Castellet will be similar to today, with AQI forecast at medium at 58.0/100. Pollution peaks around 4:00 PM (O3: 58.0/100).

Le Castellet's toughest days for allergy and air quality sufferers alike are usually calm, dry ones when tourist traffic and coastal industry overlap with the plane and pine pollen peak; the Mistral wind provides powerful periodic ventilation, offering fairly regular relief. The presence of Provencal farmland and garrigue scrub in the area adds another layer to the local pattern.

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.

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.