Worst air pollution Lleida, today and tomorrow
Today (9 August): Air quality in Lleida is fair. O3 is fair; AQI and NO2 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (NO2: 42.9/100).
Tomorrow (10 August 2026): Air quality in Lleida is fair. AQI worsens to fair; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 PM (O3: 36.8/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Lleida's air quality reflects its position in the enclosed Segre river valley on the Lleida plain, with the surrounding pre-Pyrenean sierras creating partial topographic enclosure and the intensive fruit and cereal farming of the Lleida horticultural plain contributing agricultural ammonia and pesticide aerosols. Vehicle traffic on the A-2 national road and seasonal fruit harvest machinery contribute local sources, while the Cierzo wind from the northwest provides periodic ventilation and summer heat drives ozone formation from vehicle and agricultural emissions across the enclosed basin.
Today - 9 August | Pollution peaks at 06:00
AQI:
Medium
42.9/100
PM2.5 (fine particles):
Good
7.4/100
PM10 (coarse particles):
Good
2.8/100
NO2 (nitrogen dioxide):
Medium
42.9/100
O3 (ozone):
Fair
31.0/100
SO2 (sulfur dioxide):
Good
7.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.7/100
PM1 (ultrafine particles):
Good
6.5/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 18:00
AQI:
Fair
36.8/100
PM2.5 (fine particles):
Good
13.6/100
PM10 (coarse particles):
Good
5.0/100
NO2 (nitrogen dioxide):
Fair
29.4/100
O3 (ozone):
Fair
36.8/100
SO2 (sulfur dioxide):
Good
5.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.9/100
PM1 (ultrafine particles):
Good
16.3/100
Pollen forecast in Lleida
View pollen forecastFrequently Asked Questions
Is air quality bad in Lleida right now?
On 9 August 2026, overall air quality in Lleida is fair. O3 is the main pollutant at 31.0/100. Pollution peaks around 6:00 AM (NO2: 42.9/100).
Will air quality be worse tomorrow in Lleida?
On 10 August 2026, air quality conditions in Lleida will be similar to today, with AQI forecast at fair at 36.8/100. Pollution peaks around 6:00 PM (O3: 36.8/100).
When is air pollution at its worst in Lleida?
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.
Are air quality levels in Lleida 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.
Want to see air quality forecasts for other cities in Spain?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Get the full experience in the Airmine app.