Sao Paulo Air Quality
Brazil · -23.55, -46.63 · hour of 2026-10-06 22:00 UTC
64US AQI
ModerateCategory
21.5PM2.5 (µg/m³)
21.7PM10 (µg/m³)
33O3 (µg/m³)
62.5NO2 (µg/m³)
13.5SO2 (µg/m³)
939CO (µg/m³)
What this means
Sao Paulo currently ranks #27 of 50 tracked cities for PM2.5 (1 = most polluted). Its PM2.5 level of 21.5 µg/m³ is 1.4× the WHO 24-hour guideline of 15 µg/m³. A US AQI of 64 falls in the “Moderate” band; see the health guide for what each band means.
Figures are hourly values from the Open-Meteo Air Quality API, modelled from Copernicus CAMS forecasts for the city-centre coordinates rather than read from a single ground station. Concentrations are in micrograms per cubic metre; the US AQI follows EPA breakpoints and reports the worst pollutant. Data is cached for 15 minutes.