What is the air quality trend in Ribeirão Preto?

Over the past 3 days, Ribeirão Preto had an average AQI of 40 based on station measurements. The worst day was 2026-10-20 with AQI 45.

How is Ribeirão Preto air quality measured?

Air quality in Ribeirão Preto is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Ribeirão Preto, Brazil

Name: Ribeirão Preto Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Ribeirão Preto, Brazil.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

35h

PM2.5 Station

35h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-22	42	42–42	10.1 µg/m³	1h	1
2026-10-21	33	18–68	8.2 µg/m³	19h	2
2026-10-20	45	15–121	13.0 µg/m³	15h	2

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