Worst air pollution Puerto de Santiago, today and tomorrow

On 19 July 2026, overall air quality in Puerto de Santiago is fair. AQI is the main air quality indicator at 37.2/100. Pollution peaks around 2:00 PM (PM10: 37.2/100).

On 20 July 2026, air quality conditions in Puerto de Santiago will be similar to today, with PM2.5 forecast at fair at 33.7/100. Pollution peaks around 4:00 AM (PM10: 41.4/100).

How does air quality change throughout the year in Puerto de Santiago? 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. The transition into spring usually brings cleaner air, as more frequent rain and wind reduce the buildup of local pollution. High summer temperatures and strong sun exposure drive ozone levels up, occasionally combined with smoke from nearby wildfires during dry spells. The first rains of autumn typically help clear out any lingering summer dust or ozone, setting up milder conditions ahead of winter. Thanks to the trade winds, conditions here vary less through the year than on the mainland, though Saharan dust intrusions remain an occasional disruption regardless of season.

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.