What is the air quality trend in Guarujá?

Over the past 8 days, Guarujá had an average AQI of 53 based on station measurements. The worst day was 2026-07-14 with AQI 68.

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 CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 11 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	44	18–105	11.2 µg/m³	7.7	22h	12
2026-07-20	41	20–83	10.5 µg/m³	7.9	24h	11
2026-07-19	38	25–59	9.3 µg/m³	7.4	24h	11
2026-07-18	53	25–160	15.2 µg/m³	6.6	24h	11
2026-07-17	58	37–137	16.5 µg/m³	14.2	24h	11
2026-07-16	61	35–94	17.6 µg/m³	18.3	24h	9
2026-07-15	62	23–170	19.4 µg/m³	12.5	24h	11
2026-07-14	68	59–77	20.3 µg/m³	5.8	2h	5

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