SmogRank / Countries / Finland / August 2026

Most polluted cities in Finland, August 2026

12 cities in Finland ranked by their average PM2.5 over the 31 days. Worst: Helsinki at 5.5 µg/m³, #2,096 of 2,312 cities in the world. Cleanest: Kuopio at 3.7. A city needs measurements on 70% of the days to be ranked.

  1. 1HelsinkiUusimaa
    5.5
  2. 1MyyrmäkiUusimaa
    5.5
  3. 3PoriSatakunta
    5.3
  4. 4LohjaUusimaa
    5.1
  5. 5VantaaUusimaa
    4.8
  6. 6LahtiPaijat-Hame
    4.6
  7. 7OuluNorth Ostrobothnia
    4.4
  8. 7KlaukkalaUusimaa
    4.4
  9. 9LappeenrantaSouth Karelia
    4.3
  10. 9JyväskyläCentral Finland
    4.3
  11. 11TamperePirkanmaa
    4.0
  12. 12KuopioNorth Savo
    3.7
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, August 2026 · Finland now