SmogRank / Aachen / Munich

Aachen vs Munich: PM2.5 compared

Over the last year, Munich's air was 27% more polluted than Aachen's: PM2.5 averaged 10.3 µg/m³ against 8.1, on the 311 days both cities were measured. Munich had the dirtier air on 210 of those days, Aachen on 99. Munich was over the WHO's daily guideline of 15 µg/m³ on 46 of them, Aachen on 24.

Right now

Aachen#745on the 24-hour board of 1,611, at 42 US AQI (7.6 µg/m³)
Munich–not on the 24-hour board right now

The last year, day by day

Aachen
Munich
Each city's daily mean from 6 Oct 2025 to 5 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

15Aachen, Nov 2025: 6.2 µg/m³Munich, Nov 2025: 9.3 µg/m³Nov 2025Aachen, Dec: 8.1 µg/m³Munich, Dec: 10.8 µg/m³DecAachen, Jan 2026: 11.3 µg/m³Munich, Jan 2026: 18.2 µg/m³Jan 2026Aachen, Feb: 7.0 µg/m³Munich, Feb: 9.9 µg/m³FebAachen, Mar: 13.1 µg/m³Munich, Mar: 14.3 µg/m³MarAachen, Apr: 7.8 µg/m³Munich, Apr: 8.7 µg/m³AprAachen, May: 7.1 µg/m³Munich, May: 7.6 µg/m³MayAachen, Jun: 7.8 µg/m³Munich, Jun: 9.6 µg/m³JunAachen, Jul: 7.8 µg/m³Munich, Jul: 8.4 µg/m³JulAachen, Aug: 6.5 µg/m³Munich, Aug: 8.8 µg/m³AugAachen, Sep: 5.6 µg/m³Munich, Sep: 8.7 µg/m³SepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Aachen. Faded: Munich. A month shows once both share 10 such days. Dashed line: the WHO daily guideline.

Year by year

YearAachenMunichDays both measuredDays Aachen was worse
2026 so far475423375
2025445331794
2024425226194
20235048239117

Means in US AQI over the days both cities were measured that year; a year shows once they share 30 such days.

Each city's worst days

Aachen

Munich

Daily means in US AQI, over the days both cities were measured in the last year. Each date opens that day's world board.

Compare either city with another

Aachen

Side by side with Heerlen, Gujranwala.

Munich

Side by side with Herrsching am Ammersee, Augsburg, Gujranwala.

Use this page

SmogRank, PM2.5 daily means compared, Aachen and Munich, 8 Oct 2025 – 5 Oct 2026, smogrank.com/compare/de-aachen/de-munich (accessed 6 Oct 2026).

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.

Updated 2026-10-06 20:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.