Worst air pollution Haro, today and tomorrow

On 16 July 2026, overall air quality in Haro is fair. AQI is the main air quality indicator at 36.3/100. Pollution peaks around 7:00 PM (O3: 36.3/100).

On 17 July 2026, air quality conditions in Haro will be similar to today, with AQI forecast at fair at 38.8/100. Pollution peaks around 7:00 PM (O3: 38.8/100).

What time of year has the cleanest air in Haro? 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. As spring progresses, wetter and windier conditions generally help flush out the traffic and heating pollution that built up over winter. Summer brings its own challenge in the form of ground-level ozone, which forms readily under strong sunshine and high temperatures, particularly during heatwaves. The transition into autumn generally brings cleaner conditions, as more frequent rainfall and lower temperatures curb ozone formation. Away from the moderating effect of the sea, this area experiences starker seasonal air quality swings than coastal Spain.

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.