What is the air quality trend in Guarulhos?

Over the past 8 days, Guarulhos had an average AQI of 65 based on station measurements. The worst day was 2026-08-29 with AQI 117.

How is Guarulhos air quality measured?

Air quality in Guarulhos 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 Guarulhos, Brazil

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

161h

PM2.5 Station

161h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-09-05	71	15–111	22.4 µg/m³	26.0	20h	2
2026-09-04	63	19–121	19.2 µg/m³	22.4	24h	2
2026-09-03	58	23–94	16.6 µg/m³	19.7	24h	2
2026-09-02	27	4–64	6.9 µg/m³	8.4	19h	1
2026-09-01	38	7–114	10.6 µg/m³	12.7	23h	2
2026-08-31	60	2–126	18.9 µg/m³	21.7	24h	2
2026-08-30	87	3–128	29.8 µg/m³	36.4	24h	2
2026-08-29	117	110–127	42.1 µg/m³	52.3	3h	2

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