What is the air quality in Cluj-Napoca?

Cluj-Napoca, Romania has an annual US AQI of 67 (Polluted) and average PM2.5 of 17.7 µg/m³, ranking #2943 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Cluj-Napoca?

June is typically the cleanest month (AQI 54) and January the most polluted (AQI 87).

Where does Cluj-Napoca's air quality data come from?

PM2.5: 1998–2026 (monitors 2009–2015, 2017–2021, 2023–2026, satellite 1998–2011, 2013–2014, 2016–2019, 2022; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Cluj-Napoca, Romania — Air Quality & Clean City Guide 2026

Cluj-Napoca Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2943	Cluj-Napoca, Romania	Europe	AQI 67	PM2.5 17.7 µg/m³