What is the air quality in Bilbao?

Bilbao, Spain has an annual US AQI of 54 (Reasonable) and average PM2.5 of 11 µg/m³, ranking #1161 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Bilbao?

December is typically the cleanest month (AQI 50) and February the most polluted (AQI 57).

Where does Bilbao's air quality data come from?

PM2.5: 1998–2026 (monitors 2009–2026, satellite 1998–2010, 2013–2016, 2022; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Bilbao, Spain — Air Quality & Clean City Guide 2026

Bilbao Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1161	Bilbao, Spain	Europe	AQI 54	PM2.5 11 µg/m³