Worst air pollution Sant Feliu de Llobregat, today and tomorrow

On 16 July 2026, overall air quality in Sant Feliu de Llobregat is medium. AQI is the main air quality indicator at 58.2/100. Pollution peaks around 2:00 PM (O3: 58.2/100).

On 17 July 2026, air quality conditions in Sant Feliu de Llobregat will be worse than today, with NO2 forecast at fair at 23.9/100. Pollution peaks around 2:00 PM (O3: 59.5/100).

Does air quality in Sant Feliu de Llobregat vary by season? Winter is generally the most challenging season, since low wind speeds and temperature inversions prevent traffic and wood-smoke pollution from dispersing. Spring generally sees a gradual recovery, driven by more frequent rain showers and stronger breezes that prevent pollutants from settling. Summer brings its own challenge in the form of ground-level ozone, which forms readily under strong sunshine and high temperatures, particularly during heatwaves. Air quality usually improves through autumn, as returning rains and cooling temperatures wash out summer's ozone and dust build-up. Coastal sea breezes here usually aid dispersal, but summer visitor traffic and periodic dust intrusions from North Africa can still cause spikes.

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.