What is the air quality trend in Geraldton?

Over the past 8 days, Geraldton had an average AQI of 41 based on station measurements. The worst day was 2026-09-20 with AQI 77.

How is Geraldton air quality measured?

Air quality in Geraldton 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 Geraldton, Australia

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

Historical PM2.5 and AQI trend from monitoring stations near Geraldton, Australia.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

42h

PM2.5 Station

42h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-23	28	5–71	8.3 µg/m³	3h	1
2026-09-22	64	20–152	20.3 µg/m³	12h	1
2026-09-21	29	7–53	7.0 µg/m³	10h	2
2026-09-20	77	13–117	26.1 µg/m³	5h	1
2026-09-19	31	13–46	7.5 µg/m³	3h	2
2026-09-18	30	13–58	7.6 µg/m³	6h	1
2026-09-17	36	22–51	8.7 µg/m³	2h	1
2026-09-16	38	38–38	9.1 µg/m³	1h	1

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