What is the air quality in Bayamón?

Bayamón, Puerto Rico has an annual US AQI of 39 (Reasonable) and average PM2.5 of 7.2 µg/m³, ranking #238 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Bayamón?

December is typically the cleanest month (AQI 29) and June the most polluted (AQI 52).

Where does Bayamón's air quality data come from?

PM2.5: 1998–2026 (monitors 1999–2007, 2011–2013, 2015–2026, satellite 1998–2011, 2013–2018, 2020–2021, 2023; 2026 provisional (AirNow)). Measured by government monitoring stations. Full sources are on the methodology page.

Bayamón, Puerto Rico — Air Quality & Clean City Guide 2026

Bayamón Air Quality Data

Global rank	City	Continent	AQI	PM2.5
238	Bayamón, Puerto Rico	North America	AQI 39	PM2.5 7.2 µg/m³