What is the air quality in Aachen?

Aachen, Germany has an annual US AQI of 55 (Reasonable) and average PM2.5 of 12.2 µg/m³, ranking #1386 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Aachen?

October is typically the cleanest month (AQI 49) and March the most polluted (AQI 64).

Where does Aachen's air quality data come from?

PM2.5: 1998–2026 (monitors 2008–2010, 2015–2025, satellite 1998–2007, 2009, 2011–2014, 2020, model 2026). Measured by government monitoring stations. Full sources are on the methodology page.

Aachen, Germany — Air Quality & Clean City Guide 2026

Aachen Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1386	Aachen, Germany	Europe	AQI 55	PM2.5 12.2 µg/m³