What is the air quality in Santiago de Compostela?

Santiago de Compostela, Spain has an annual US AQI of 47 (Reasonable) and average PM2.5 of 9 µg/m³, ranking #569 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Santiago de Compostela?

July is typically the cleanest month (AQI 40) and February the most polluted (AQI 54).

Where does Santiago de Compostela's air quality data come from?

PM2.5: 1998–2026 (monitors 2015–2026, satellite 1998–2014; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Santiago de Compostela, Spain — Air Quality & Clean City Guide 2026

Santiago de Compostela Air Quality Data

Global rank	City	Continent	AQI	PM2.5
569	Santiago de Compostela, Spain	Europe	AQI 47	PM2.5 9 µg/m³