What is the air quality in Caguas?

Caguas, Puerto Rico has an annual US AQI of 37 (Reasonable) and average PM2.5 of 6.8 µg/m³, ranking #190 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Caguas?

December is typically the cleanest month (AQI 28) and July the most polluted (AQI 50).

Where does Caguas's air quality data come from?

PM2.5: 1998–2025 (monitors 2018–2025, satellite 1998–2018, 2020–2024). Measured by government monitoring stations. Full sources are on the methodology page.

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

Caguas Air Quality Data

Global rank	City	Continent	AQI	PM2.5
190	Caguas, Puerto Rico	North America	AQI 37	PM2.5 6.8 µg/m³