What is the air quality in Saint Etienne?

Saint Etienne, France has an annual US AQI of 53 (Reasonable) and average PM2.5 of 10.6 µg/m³, ranking #1038 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Saint Etienne?

September is typically the cleanest month (AQI 46) and March the most polluted (AQI 60).

Where does Saint Etienne's air quality data come from?

PM2.5: 1998–2026 (monitors 2012–2026, satellite 1998–2011; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Saint Etienne, France — Air Quality & Clean City Guide 2026

Saint Etienne Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1038	Saint Etienne, France	Europe	AQI 53	PM2.5 10.6 µg/m³