What is the air quality trend in Rio Claro?

Over the past 15 days, Rio Claro had an average AQI of 64 based on station measurements. The worst day was 2026-05-26 with AQI 88.

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.

116

Current AQI
Unhealthy for sensitive groups Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

320h

PM2.5 Station

320h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-06-09	84	24–172	29.8 µg/m³	14h	4
2026-06-08	56	25–121	15.8 µg/m³	23h	4
2026-06-07	64	19–175	21.0 µg/m³	24h	3
2026-06-06	65	15–154	20.4 µg/m³	24h	3
2026-06-05	57	22–109	16.8 µg/m³	24h	4
2026-06-04	56	18–151	15.8 µg/m³	23h	3
2026-06-03	60	11–136	17.3 µg/m³	24h	3
2026-06-02	60	22–152	17.7 µg/m³	24h	4
2026-06-01	43	15–122	12.2 µg/m³	22h	3
2026-05-31	54	15–216	21.2 µg/m³	18h	2
2026-05-30	64	10–255	25.5 µg/m³	23h	3
2026-05-29	76	31–159	24.9 µg/m³	24h	3
2026-05-28	70	26–164	22.7 µg/m³	20h	3
2026-05-27	69	13–178	23.8 µg/m³	24h	3
2026-05-26	88	25–121	29.6 µg/m³	9h	4

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