What is the air quality in San Luis Río Colorado?

San Luis Río Colorado, Mexico has an annual US AQI of 49 (Reasonable) and average PM2.5 of 9.3 µg/m³, ranking #654 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in San Luis Río Colorado?

January is typically the cleanest month (AQI 44) and May the most polluted (AQI 53).

Where does San Luis Río Colorado's air quality data come from?

PM2.5: 1998–2024 (satellite). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

San Luis Río Colorado, Mexico — Air Quality & Clean City Guide 2026

San Luis Río Colorado Air Quality Data

Global rank	City	Continent	AQI	PM2.5
654	San Luis Río Colorado, Mexico	North America	AQI 49	PM2.5 9.3 µg/m³