What is the air quality trend in Guarujá?

Over the past 8 days, Guarujá had an average AQI of 79 based on station measurements. The worst day was 2026-05-23 with AQI 94.

How is Guarujá air quality measured?

Air quality in Guarujá 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 Guarujá, Brazil

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	68	40–104	20.3 µg/m³	22.7	19h	14
2026-05-29	66	40–112	19.1 µg/m³	14.4	24h	15
2026-05-28	61	26–118	17.7 µg/m³	4.1	24h	15
2026-05-27	83	55–137	26.9 µg/m³	21.3	24h	15
2026-05-26	85	36–152	27.9 µg/m³	18.8	24h	17
2026-05-25	90	34–156	30.5 µg/m³	20.4	24h	16
2026-05-24	87	57–163	30.3 µg/m³	25.7	24h	16
2026-05-23	94	66–143	31.9 µg/m³	20.1	5h	16

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