What is the air quality in Santiago de Querétaro?

Santiago de Querétaro, Mexico has an annual US AQI of 62 (Polluted) and average PM2.5 of 15.2 µg/m³, ranking #2407 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Santiago de Querétaro?

October is typically the cleanest month (AQI 51) and May the most polluted (AQI 81).

Where does Santiago de Querétaro's air quality data come from?

PM2.5: 1998–2026 (monitors 2014, 2021–2026, satellite 1998–2013, 2015–2022; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Santiago de Querétaro, Mexico — Air Quality & Clean City Guide 2026

Santiago de Querétaro Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2407	Santiago de Querétaro, Mexico	North America	AQI 62	PM2.5 15.2 µg/m³