SmogRank / Munich / Wetzlar

Munich vs Wetzlar: PM2.5 compared

Over the last year, Munich's air was 9% more polluted than Wetzlar's: PM2.5 averaged 10.2 µg/m³ against 9.4, on the 319 days both cities were measured. Munich had the dirtier air on 201 of those days, Wetzlar on 113. Munich was over the WHO's daily guideline of 15 µg/m³ on 48 of them, Wetzlar on 52.

Right now

Munich–not on the 24-hour board right now
Wetzlar#671on the 24-hour board of 1,611, at 45 US AQI (8.1 µg/m³)

The last year, day by day

Munich
Wetzlar
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

15Munich, Nov 2025: 9.3 µg/m³Wetzlar, Nov 2025: 12.9 µg/m³Nov 2025Munich, Dec: 10.8 µg/m³Wetzlar, Dec: 12.6 µg/m³DecMunich, Jan 2026: 18.3 µg/m³Wetzlar, Jan 2026: 18.5 µg/m³Jan 2026Munich, Feb: 9.9 µg/m³Wetzlar, Feb: 11.5 µg/m³FebMunich, Mar: 13.8 µg/m³Wetzlar, Mar: 11.9 µg/m³MarMunich, Apr: 8.7 µg/m³Wetzlar, Apr: 6.1 µg/m³AprMunich, May: 7.7 µg/m³Wetzlar, May: 5.1 µg/m³MayMunich, Jun: 9.5 µg/m³Wetzlar, Jun: 8.1 µg/m³JunMunich, Jul: 8.4 µg/m³Wetzlar, Jul: 6.5 µg/m³JulMunich, Aug: 8.7 µg/m³Wetzlar, Aug: 6.0 µg/m³AugMunich, Sep: 8.1 µg/m³Wetzlar, Sep: 5.4 µg/m³SepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Munich. Faded: Wetzlar. A month shows once both share 10 such days. Dashed line: the WHO daily guideline.

Year by year

YearMunichWetzlarDays both measuredDays Munich was worse
2026 so far5449241175
20255353318188
2024524413481

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

Munich

Wetzlar

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

Munich

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

Wetzlar

Side by side with Gießen, Gujranwala.

Use this page

SmogRank, PM2.5 daily means compared, Munich and Wetzlar, 8 Oct 2025 – 5 Oct 2026, smogrank.com/compare/de-munich/de-wetzlar (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.