Worst air pollution Marina Real Juan Carlos I - Valencia, today and tomorrow

On 19 July 2026, overall air quality in Marina Real Juan Carlos I is fair. AQI is the main air quality indicator at 35.4/100. Pollution peaks around 1:00 PM (O3: 35.4/100).

On 20 July 2026, air quality conditions in Marina Real Juan Carlos I will be similar to today, with AQI forecast at fair at 35.9/100. Pollution peaks around 7:00 PM (O3: 35.9/100).

When is air quality typically worst in Marina Real Juan Carlos I? Air quality is typically at its weakest in December and January, when cold, calm high-pressure spells trap traffic exhaust and wood-smoke close to the ground instead of letting it disperse. Spring generally sees a gradual recovery, driven by more frequent rain showers and stronger breezes that prevent pollutants from settling. The heat of summer drives up ozone formation, and dry conditions occasionally bring smoke from regional wildfires into the mix. The transition into autumn generally brings cleaner conditions, as more frequent rainfall and lower temperatures curb ozone formation. Being on the Mediterranean coast helps with dispersal most of the year, though summer tourism and North African dust episodes remain a factor.

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.