What is the air quality in Bonn?

Bonn, Germany has an annual US AQI of 58 (Reasonable) and average PM2.5 of 13.1 µg/m³, ranking #1772 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Bonn?

September is typically the cleanest month (AQI 51) and March the most polluted (AQI 68).

Where does Bonn's air quality data come from?

PM2.5: 1998–2026 (monitors 2022–2026, satellite 1998–2021; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Bonn, Germany — Air Quality & Clean City Guide 2026

Bonn Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1772	Bonn, Germany	Europe	AQI 58	PM2.5 13.1 µg/m³