What is the air quality in Budapest?

Budapest, Hungary has an annual US AQI of 74 (Polluted) and average PM2.5 of 20.9 µg/m³, ranking #3466 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Budapest?

May is typically the cleanest month (AQI 56) and January the most polluted (AQI 96).

Where does Budapest's air quality data come from?

PM2.5: 1998–2026 (monitors 2009–2026, satellite 1998–2009, 2015–2018; 2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Budapest, Hungary — Air Quality & Clean City Guide 2026

Budapest Air Quality Data

Global rank	City	Continent	AQI	PM2.5
3466	Budapest, Hungary	Europe	AQI 74	PM2.5 20.9 µg/m³