What is the air quality in San Juan del Río?

San Juan del Río, Mexico has an annual US AQI of 62 (Polluted) and average PM2.5 of 14.8 µg/m³, ranking #2353 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in San Juan del Río?

October is typically the cleanest month (AQI 51) and May the most polluted (AQI 82).

Where does San Juan del Río's air quality data come from?

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

San Juan del Río, Mexico — Air Quality & Clean City Guide 2026

San Juan del Río Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2353	San Juan del Río, Mexico	North America	AQI 62	PM2.5 14.8 µg/m³