Perth AQI Trends
Perth AQI was measured in 2024, with a trend delta of n/a AQI points. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Western Australia, Australia.
Search city analytics
Average EPA AQI
22
Rank 42 of 59 cities by average AQI
PM2.5
4.3
ug/m3 annualized city average
Seasonality
June
Cleanest: March
Health indicator
0.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Perth
28
19
15
16
23
35
21
20
32
19
17
28
What this trends page measures
Compare yearly air-quality direction, best years, worst years, and trend deltas.
For Perth, the current global analytics build covers 327 daily rows from 2024-01-10 to 2024-12-31. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.