What is the air quality in Vaasa?

Vaasa, Finland has an annual US AQI of 35 (Reasonable) and average PM2.5 of 5.3 µg/m³, ranking #131 of 5856 cities. Main pollutant: O3.

What is the cleanest month in Vaasa?

October is typically the cleanest month (AQI 29) and April the most polluted (AQI 40).

Where does Vaasa's air quality data come from?

PM2.5: 1998–2024 (monitors 2010–2023, satellite 1998–2009, 2011, 2014, 2018, 2024). Measured by government monitoring stations. Full sources are on the methodology page.

Vaasa, Finland — Air Quality & Clean City Guide 2026

Vaasa Air Quality Data

Global rank	City	Continent	AQI	PM2.5
131	Vaasa, Finland	Europe	AQI 35	PM2.5 5.3 µg/m³