SmogRank / Germany / Thuringia / Suhl

Suhl, month by month

Suhl has a measured daily mean on 986 days since 11 January 2023. Its worst month was February 2025, at 66 US AQI (17.4 µg/m³), 726th of 2,633 cities on that month's world ranking. Its cleanest was October 2025, at 25 US AQI (4.5 µg/m³). 2025 averaged 44 US AQI (8.0 µg/m³), against 43 US AQI (7.8 µg/m³) in 2024.

Every month since 2023

202443 for the year263 days measured1,191st of 2,097 in the world
2023too few days for a mean (a year needs 256)150 days measured
Jan7 daysFeb55#610Mar20 daysApr3 daysMaynoneJun11 daysJul15 daysAugnoneSep1 dayOct9 daysNov33#1,749Dec44#1,292
Each square is a month's mean PM2.5 in US AQI from Suhl's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Suhl marked; each year, the year's. A dashed square is the running month, so far.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Months without a mean, and why

15 months
MonthWhy
Jun 202619 of 30 days measured; a month needs 21. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jun 202520 of 30 days measured; a month needs 21. The others: 10 with under 18 hours of readings or readings that failed our checks.
Oct 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Sep 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Mar 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Oct 20239 of 31 days measured; a month needs 22. The others: 22 with under 18 hours of readings or readings that failed our checks.
Sep 20231 of 30 days measured; a month needs 21. The others: 29 with under 18 hours of readings or readings that failed our checks.
Aug 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 202315 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Jun 202311 of 30 days measured; a month needs 21. The others: 19 with under 18 hours of readings or readings that failed our checks.
May 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 20233 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Mar 202320 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Jan 20237 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Suhl's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2025 6617.4 µg/m³24 of 28726thof 2,633Europe, 1 to 14 February 2025
March 2025 6214.8 µg/m³26 of 31964thof 2,862Germany, Poland and 25 more countries, March 2025
January 2026 5511.2 µg/m³28 of 31977thof 2,617–
February 2023 5511.0 µg/m³23 of 28610thof 1,129Europe, 6 to 25 February 2023
March 2026 5410.5 µg/m³31 of 311,539thof 2,971–
January 2024 5310.1 µg/m³29 of 31870thof 2,385–

Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.

Suhl's worst days

DayUS AQIEpisode
10 Mar 2025 11240.0 µg/m³Germany, Poland and 25 more countries, March 2025
10 Feb 2025 11139.5 µg/m³Europe, 1 to 14 February 2025
30 Mar 2024 10637.6 µg/m³Europe, March and April 2024
11 Feb 2023 10035.3 µg/m³Europe, 6 to 25 February 2023
9 Nov 2024 8829.1 µg/m³Europe, November 2024
10 Feb 2023 8829.0 µg/m³Europe, 6 to 25 February 2023
11 Mar 2025 8829.0 µg/m³Germany, Poland and 25 more countries, March 2025
9 Mar 2025 8728.2 µg/m³Germany, Poland and 25 more countries, March 2025
10 Nov 2024 8225.7 µg/m³Europe, November 2024
8 Mar 2025 8125.2 µg/m³Germany, Poland and 25 more countries, March 2025

Daily means, the highest since 11 Jan 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.

Use this history

SmogRank, PM2.5 monthly and daily means, Suhl, Germany, 11 Jan 2023 – 10 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/de/suhl/history (accessed 12 Oct 2026).

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Suhl now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 18:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).