What is the air quality trend in Ribeirão Preto?

Over the past 8 days, Ribeirão Preto had an average AQI of 57 based on station measurements. The worst day was 2026-05-25 with AQI 91.

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
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

99h

PM2.5 Station

99h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	67	27–119	20.7 µg/m³	5h	1
2026-05-29	32	12–60	8.1 µg/m³	10h	2
2026-05-28	30	10–59	7.4 µg/m³	11h	1
2026-05-27	58	7–142	18.2 µg/m³	16h	1
2026-05-26	67	14–259	29.1 µg/m³	15h	1
2026-05-25	91	27–207	36.9 µg/m³	14h	2
2026-05-24	39	10–133	10.8 µg/m³	19h	1
2026-05-23	79	26–171	29.7 µg/m³	9h	1

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