What is the air quality in Antofagasta?

Antofagasta, Chile has an annual US AQI of 55 (Reasonable) and average PM2.5 of 12 µg/m³, ranking #1368 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Antofagasta?

January is typically the cleanest month (AQI 50) and June the most polluted (AQI 64).

Where does Antofagasta's air quality data come from?

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

Antofagasta, Chile — Air Quality & Clean City Guide 2026

Antofagasta Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1368	Antofagasta, Chile	South America	AQI 55	PM2.5 12 µg/m³