Osijek Seasonal Pollution
Osijek usually records its highest OpenAQ-derived EPA AQI in December and its cleanest month in May. The page uses OpenAQ-derived daily history for 3 mapped monitoring locations in Osječko-Baranjska Županija, Croatia.
Search city analytics
Average EPA AQI
40
Rank 10 of 17 cities by average AQI
PM2.5
11.6
ug/m3 annualized city average
Seasonality
December
Cleanest: May
Health indicator
0.5
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Osijek
60
51
21
27
21
26
23
28
25
21
70
71
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Osijek, the current global analytics build covers 275 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.