Bermeo Seasonal Pollution
Bermeo usually records its highest OpenAQ-derived EPA AQI in September and its cleanest month in March. The page uses OpenAQ-derived daily history for 2 mapped monitoring locations in Basque Country, Spain.
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Average EPA AQI
25
Rank 161 of 253 cities by average AQI
PM2.5
4.6
ug/m3 annualized city average
Seasonality
September
Cleanest: March
Health indicator
0.2
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Bermeo
25
26
12
21
22
31
31
29
32
19
28
23
What this seasonality page measures
Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.
For Bermeo, the current global analytics build covers 304 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.