Worst air pollution Gijón, today and tomorrow

On 9 August 2026, overall air quality in Gijón is fair. AQI is the main air quality indicator at 36.8/100. Pollution peaks around 3:00 PM (O3: 36.8/100).

On 10 August 2026, air quality conditions in Gijón will be similar to today, with AQI forecast at fair at 31.8/100. Pollution peaks around 6:00 PM (O3: 31.8/100).

Does air quality in Gijón vary by season? Cold, windless spells in December and January are usually when conditions dip most, as heating emissions and traffic fumes accumulate under a stable atmosphere. Conditions tend to ease in spring, as more active weather systems bring the wind and rain needed to disperse ground-level pollution. Hot, dry summer conditions favour ozone formation, so afternoon readings can rise even when traffic and heating pollution are otherwise low. Early autumn can still bring warm, stagnant spells before the season's returning rain and wind begin clearing the air. Proximity to the Atlantic brings enough rain and wind through most of the year to limit how long pollution episodes last here.

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.