What is the air quality in Mérida?

Mérida, Mexico has an annual US AQI of 55 (Reasonable) and average PM2.5 of 12.1 µg/m³, ranking #1384 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Mérida?

January is typically the cleanest month (AQI 44) and July the most polluted (AQI 67).

Where does Mérida's air quality data come from?

PM2.5: 1998–2026 (monitors 2013–2021, 2024–2026, satellite 1998–2013, 2016–2017, 2019–2024; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Mérida, Mexico — Air Quality & Clean City Guide 2026

Mérida Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1384	Mérida, Mexico	North America	AQI 55	PM2.5 12.1 µg/m³