Warsaw Seasonal Pollution
Warsaw usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in July. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Mazowieckie, Poland.
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Average EPA AQI
77
Rank 4 of 155 cities by average AQI
PM2.5
23.0
ug/m3 annualized city average
Seasonality
December
Cleanest: July
Health indicator
1.0
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Warsaw
-
-
-
-
72
65
58
61
76
82
93
99
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Warsaw, the current global analytics build covers 210 daily rows from 2024-05-29 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.