What is the air quality trend in São Carlos?

Over the past 15 days, São Carlos had an average AQI of 61 based on station measurements. The worst day was 2026-05-20 with AQI 83.

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

252h

PM2.5 Station

252h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	54	15–119	16.6 µg/m³	9h	2
2026-05-29	57	22–157	17.3 µg/m³	21h	2
2026-05-28	66	3–155	20.9 µg/m³	20h	2
2026-05-27	75	2–300	36.5 µg/m³	20h	2
2026-05-26	56	12–135	16.5 µg/m³	18h	2
2026-05-25	50	2–167	16.5 µg/m³	20h	2
2026-05-24	57	14–172	20.0 µg/m³	16h	2
2026-05-23	80	9–169	28.8 µg/m³	22h	2
2026-05-22	59	10–159	20.3 µg/m³	15h	2
2026-05-21	65	12–190	24.1 µg/m³	21h	2
2026-05-20	83	11–338	39.0 µg/m³	16h	2
2026-05-19	79	8–370	37.8 µg/m³	18h	2
2026-05-18	71	8–179	28.8 µg/m³	16h	2
2026-05-17	40	7–154	12.5 µg/m³	14h	2
2026-05-16	33	12–60	8.2 µg/m³	6h	2

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