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Bern Seasonal Pollution

Bern 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 Bern, Switzerland.

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Average EPA AQI

48

Rank 8 of 33 cities by average AQI

PM2.5

11.3

ug/m3 annualized city average

Seasonality

December

Cleanest: May

Health indicator

0.5

cigarette-equivalent per day

Yearly EPA AQI trend

0501002024Bern

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec
Bern
46
41
42
-
25
44
40
53
43
51
65
68

What this seasonality page measures

Find each city's worst and cleanest months from daily OpenAQ-derived EPA AQI.

For Bern, the current global analytics build covers 296 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.

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