What is the air quality trend in Rio Claro?

Over the past 8 days, Rio Claro had an average AQI of 69 based on station measurements. The worst day was 2026-05-25 with AQI 83.

How is Rio Claro air quality measured?

Air quality in Rio Claro 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 Rio Claro, Brazil

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

Historical PM2.5 and AQI trend from monitoring stations near Rio Claro, Brazil.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	67	24–165	22.3 µg/m³	10h	5
2026-05-29	63	29–171	20.0 µg/m³	24h	4
2026-05-28	59	9–113	16.9 µg/m³	24h	4
2026-05-27	63	21–107	19.2 µg/m³	24h	4
2026-05-26	65	12–167	20.6 µg/m³	24h	5
2026-05-25	83	22–200	32.2 µg/m³	24h	5
2026-05-24	82	13–156	27.7 µg/m³	24h	4
2026-05-23	72	27–158	23.7 µg/m³	13h	5

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