What is the air quality in Barcelona?

Barcelona, Spain has an annual US AQI of 63 (Polluted) and average PM2.5 of 15.7 µg/m³, ranking #2529 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Barcelona?

September is typically the cleanest month (AQI 59) and February the most polluted (AQI 69).

Where does Barcelona's air quality data come from?

PM2.5: 1998–2026 (monitors 2006, 2008–2026, satellite 1998–2005, 2007–2008; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Barcelona, Spain — Air Quality & Clean City Guide 2026

Barcelona Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2529	Barcelona, Spain	Europe	AQI 63	PM2.5 15.7 µg/m³