What is the air quality in San Miguel de Allende?

San Miguel de Allende, Mexico has an annual US AQI of 60 (Reasonable) and average PM2.5 of 14.1 µg/m³, ranking #2126 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in San Miguel de Allende?

October is typically the cleanest month (AQI 47) and May the most polluted (AQI 76).

Where does San Miguel de Allende's air quality data come from?

PM2.5: 1998–2026 (monitors 2017–2026, satellite 1998–2017, 2021, 2023–2024; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

San Miguel de Allende, Mexico — Air Quality & Clean City Guide 2026

San Miguel de Allende Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2126	San Miguel de Allende, Mexico	North America	AQI 60	PM2.5 14.1 µg/m³