What is the air quality in Osorno?

Osorno, Chile has an annual US AQI of 78 (Polluted) and average PM2.5 of 24.8 µg/m³, ranking #3727 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Osorno?

January is typically the cleanest month (AQI 42) and July the most polluted (AQI 124).

Where does Osorno's air quality data come from?

PM2.5: 1998–2026 (monitors 2016–2026, satellite 1998–2018, 2021–2023; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Osorno, Chile — Air Quality & Clean City Guide 2026

Osorno Air Quality Data

Global rank	City	Continent	AQI	PM2.5
3727	Osorno, Chile	South America	AQI 78	PM2.5 24.8 µg/m³