Santiago AQI Trends
Santiago 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 Santiago Metropolitan, Chile.
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Average EPA AQI
91
Rank 25 of 60 cities by average AQI
PM2.5
30.0
ug/m3 annualized city average
Seasonality
July
Cleanest: November
Health indicator
1.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Santiago
78
77
74
82
110
116
145
98
85
76
71
75
What this trends page measures
Compare yearly air-quality direction, best years, worst years, and trend deltas.
For Santiago, the current global analytics build covers 356 daily rows from 2024-01-01 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.