What is the air quality in Tromsø?

Tromsø, Norway has an annual US AQI of 32 (Reasonable) and average PM2.5 of 4.7 µg/m³, ranking #71 of 5856 cities. Main pollutant: O3.

What is the cleanest month in Tromsø?

October is typically the cleanest month (AQI 27) and May the most polluted (AQI 40).

Where does Tromsø's air quality data come from?

PM2.5: 1998–2026 (satellite 1998–2024, model 2025–2026). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

Tromsø, Norway — Air Quality & Clean City Guide 2026

Tromsø Air Quality Data

Global rank	City	Continent	AQI	PM2.5
71	Tromsø, Norway	Europe	AQI 32	PM2.5 4.7 µg/m³