Worst air pollution Alcalá la Real, today and tomorrow

On 20 September 2026, overall air quality in Alcalá la Real is moderate. AQI is the main air quality indicator at 41.8/100. Pollution peaks around 8:00 AM (PM2.5: 41.8/100).

On 21 September 2026, air quality conditions in Alcalá la Real will be similar to today, with AQI forecast at moderate at 42.9/100. Pollution peaks around 11:00 AM (PM2.5: 42.9/100).

What is the yearly air quality pattern like in Alcalá la Real? January is frequently the most difficult month, with cold stagnant air allowing wood-smoke and exhaust to build up instead of clearing. March through May tends to see steady improvement, with more unsettled weather patterns helping disperse traffic and heating pollution. 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. This area's proximity to North Africa means Saharan dust episodes can arrive at almost any time of year, layering onto the seasonal pattern.

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.