Poreč Seasonal Pollution
Poreč usually records its highest OpenAQ-derived EPA AQI in February and its cleanest month in October. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Istarska Županija, Croatia.
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Average EPA AQI
29
Rank 13 of 17 cities by average AQI
PM2.5
6.7
ug/m3 annualized city average
Seasonality
February
Cleanest: October
Health indicator
0.3
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Poreč
50
55
15
17
14
20
20
28
25
9
35
29
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Poreč, the current global analytics build covers 213 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.