Worst air pollution Lleida, today and tomorrow

On 16 July 2026, overall air quality in Lleida is medium. AQI is the main air quality indicator at 46.1/100. Pollution peaks around 3:00 AM (NO2: 46.1/100).

On 17 July 2026, air quality conditions in Lleida will be worse than today, with O3 forecast at fair at 37.5/100. Pollution peaks around 6:00 AM (NO2: 47.3/100).

How does air quality change throughout the year in Lleida? Winter tends to bring the year's weakest readings, as stagnant, cold air lets heating smoke and vehicle emissions build up rather than clear away. Conditions generally start to recover in spring, as increasing wind and rainfall break up the stagnant air masses typical of winter. Summer heat and intense sunlight drive photochemical ozone production, which can push afternoon air quality readings higher despite reduced winter-style pollution sources. Autumn generally marks the shift back toward calmer, cleaner conditions as temperatures drop and rainfall becomes more regular. The Mediterranean coast's sea breezes generally help disperse pollution, though summer tourism traffic and occasional Saharan dust can still push levels up.

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.