What is the air quality in Rio de Janeiro?

Rio de Janeiro, Brazil has an annual US AQI of 59 (Reasonable) and average PM2.5 of 13.2 µg/m³, ranking #1880 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Rio de Janeiro?

November is typically the cleanest month (AQI 54) and June the most polluted (AQI 64).

Where does Rio de Janeiro's air quality data come from?

PM2.5: 1998–2025 (monitors 2022–2025, satellite 1998–2024, model 2025). Measured by government monitoring stations. Full sources are on the methodology page.

Rio de Janeiro, Brazil — Air Quality & Clean City Guide 2026

Rio de Janeiro Air Quality Data

Global rank	City	Continent	AQI	PM2.5
1880	Rio de Janeiro, Brazil	South America	AQI 59	PM2.5 13.2 µg/m³