SmogRank / Countries / Finland / November 2025

Most polluted cities in Finland, November 2025

11 cities in Finland ranked by their average PM2.5 over the 30 days. Worst: Myyrmäki at 5.5 µg/m³, #1,839 of 2,173 cities in the world. Cleanest: Jyväskylä at 2.5. A city needs measurements on 70% of the days to be ranked.

  1. 1MyyrmäkiUusimaa
    5.5
  2. 2HelsinkiUusimaa
    5.2
  3. 3LappeenrantaSouth Karelia
    4.9
  4. 4VantaaUusimaa
    4.6
  5. 5PoriSatakunta
    4.2
  6. 5LohjaUusimaa
    4.2
  7. 7LahtiPaijat-Hame
    3.4
  8. 7KlaukkalaUusimaa
    3.4
  9. 9OuluNorth Ostrobothnia
    3.2
  10. 10TamperePirkanmaa
    2.7
  11. 11JyväskyläCentral Finland
    2.5
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, November 2025 · Finland now

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SmogRank, most polluted cities in Finland, PM2.5, November 2025, smogrank.com/fi/history/2025-11 (accessed 2 Oct 2026).

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