What is the air quality in Guanajuato?

Guanajuato, Mexico has an annual US AQI of 58 (Reasonable) and average PM2.5 of 13.5 µg/m³, ranking #1840 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Guanajuato?

October is typically the cleanest month (AQI 46) and May the most polluted (AQI 75).

Where does Guanajuato's air quality data come from?

PM2.5: 1998–2026 (monitors 2018, 2020–2026, satellite 1998–2019, 2024; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Guanajuato, Mexico — Air Quality & Clean City Guide 2026

Guanajuato Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1840	Guanajuato, Mexico	North America	AQI 58	PM2.5 13.5 µg/m³