What is the air quality in Jena?

Jena, Germany has an annual US AQI of 56 (Reasonable) and average PM2.5 of 12.4 µg/m³, ranking #1506 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Jena?

August is typically the cleanest month (AQI 49) and March the most polluted (AQI 66).

Where does Jena's air quality data come from?

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

Jena, Germany — Air Quality & Clean City Guide 2026

Jena Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1506	Jena, Germany	Europe	AQI 56	PM2.5 12.4 µg/m³