What is the air quality in Liberec?

Liberec, Czechia has an annual US AQI of 67 (Polluted) and average PM2.5 of 17.8 µg/m³, ranking #2964 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Liberec?

June is typically the cleanest month (AQI 57) and January the most polluted (AQI 80).

Where does Liberec's air quality data come from?

PM2.5: 1998–2026 (monitors 2004–2026, satellite 1998–2003; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Liberec, Czechia — Air Quality & Clean City Guide 2026

Liberec Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2964	Liberec, Czechia	Europe	AQI 67	PM2.5 17.8 µg/m³