La Serena Seasonal Pollution
La Serena usually records its highest OpenAQ-derived EPA AQI in July and its cleanest month in March. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Coquimbo, Chile.
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Average EPA AQI
70
Rank 51 of 60 cities by average AQI
PM2.5
19.3
ug/m3 annualized city average
Seasonality
July
Cleanest: March
Health indicator
0.9
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
La Serena
63
62
62
66
80
76
84
71
75
66
68
66
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For La Serena, the current global analytics build covers 358 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.