Air quality in Bern, Bern, Switzerland today

Mr. Duck’s Air Quality Score

Moderate air today for Bern, Bern, Switzerland

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Bern today falls into the Moderate category according to OpenAQ data. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 reference value of 33.49 µg/m³ and a PM10 reference value of 14.34 µg/m³, based on 25 valid observations.

These figures reflect the current monitoring snapshot for Bern. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.

Latest sensor values

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

What the data includes

The OpenAQ feed for Bern currently contains data from five monitoring sites and a total of twenty‑eight recent observations across the listed pollutants. All eight measured compounds – carbon monoxide (CO) is not present in this snapshot, but nitrogen dioxide (NO2), ozone (O3), particulate matter of 1 µm (PM1), 2.5 µm (PM2.5), and 10 µm (PM10), relative humidity, temperature and particle count (UM003) – are reported with timestamps that are generally very recent. The newest readings were recorded on 2026‑02‑10 at 20:00 UTC for NO2, O3 and PM10, and at 22:00 UTC for the remaining parameters, meaning the latest data are no older than two hours from the reference time.

Across the dataset the concentration of fine particles shows a wide spread. PM10 values range from about 9 µg/m³ up to almost 49 µg/m³, with a median of 14.3 µg/m³; PM2.5 varies between roughly 1.6 µg/m³ and 33.5 µg/m³, centering on a median of 20.0 µg/m³; and PM1 is clustered tighter, from 0.62 µg/m³ to 21.5 µg/m³ with a median of 20.2 µg/m³. Relative humidity measurements are consistently high, spanning 56 % to nearly 72 % and peaking at 71.9 %; temperature stays within a narrow band from about 9.3 °C to 12.4 °C, with the lowest value recorded at 9.30 °C. Particle count (UM003) shows the greatest variability, ranging from roughly 286 particles/cm³ up to 3546 particles/cm³, while the median sits at 3425 particles/cm³.

The dataset is uneven in its coverage: NO2 and O3 each have only two recent samples, whereas PM‑related metrics and meteorological variables have four or five recent entries. No rows are flagged as old or unknown, indicating that all reported values are fresh, but the limited number of observations for some pollutants means that short‑term fluctuations may not be fully captured. Consequently, while the available data give a clear picture of current conditions at the monitored sites, they represent only a snapshot and can differ across other parts of Bern.

Learn more about sources and filtering: About the data.

Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)

Latest sensor values (bars)

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

Data notes

The data shown for Bern reflects 25 valid measurements and is Updated within 3 days, with the most recent values recorded on 2026‑02‑10 at 22:00 UTC. This snapshot provides a current view of citywide air quality but conditions can differ across neighborhoods and change throughout the day, so individual experiences may vary from the reported averages.

OpenAQ station rows