What is the air quality trend in São Carlos?

Over the past 8 days, São Carlos had an average AQI of 66 based on station measurements. The worst day was 2026-05-27 with AQI 82.

How is São Carlos air quality measured?

Air quality in São Carlos 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 São Carlos, Brazil

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

Historical PM2.5 and AQI trend from monitoring stations near São Carlos, Brazil.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

157h

PM2.5 Station

157h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	44	9–84	12.2 µg/m³	13h	2
2026-05-29	62	24–157	18.5 µg/m³	22h	2
2026-05-28	62	1–159	19.8 µg/m³	24h	3
2026-05-27	82	20–171	29.7 µg/m³	21h	3
2026-05-26	69	23–147	21.3 µg/m³	23h	3
2026-05-25	66	10–166	22.6 µg/m³	23h	3
2026-05-24	67	21–165	21.8 µg/m³	21h	3
2026-05-23	77	39–138	24.6 µg/m³	10h	4

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