What is the air quality in Tijuana?

Tijuana, Mexico has an annual US AQI of 63 (Polluted) and average PM2.5 of 15.9 µg/m³, ranking #2568 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Tijuana?

April is typically the cleanest month (AQI 57) and November the most polluted (AQI 71).

Where does Tijuana's air quality data come from?

PM2.5: 1998–2026 (monitors 2015–2016, 2019–2026, satellite 1998–2019; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Tijuana, Mexico — Air Quality & Clean City Guide 2026

Tijuana Air Quality Data

Global rank	City	Continent	AQI	PM2.5
2568	Tijuana, Mexico	North America	AQI 63	PM2.5 15.9 µg/m³