SmogRank / Countries / Poland / December 2025

Most polluted cities in Poland, December 2025

59 cities in Poland ranked by their average PM2.5 over the 31 days. Worst: Żywiec at 55.6 µg/m³, #142 of 2,351 cities in the world. Cleanest: Kościerzyna at 12.7. A city needs measurements on 70% of the days to be ranked.

  1. 1ŻywiecSilesia
    55.6
  2. 2Jelenia GóraLower Silesia
    31.6
  3. 3Skarżysko-KamiennaŚwiętokrzyskie
    31.2
  4. 3ZgierzŁódź Voivodeship
    31.2
  5. 5Gorzów WielkopolskiLubusz
    30.8
  6. 6KaliszGreater Poland
    30.7
  7. 7RadomskoŁódź Voivodeship
    30.0
  8. 8Czechowice-DziedziceSilesia
    27.7
  9. 9KutnoŁódź Voivodeship
    27.6
  10. 10PoznańGreater Poland
    27.3
  11. 10ŁaskŁódź Voivodeship
    27.3
  12. 10KrakówLesser Poland
    27.3
  13. 13KłodzkoLower Silesia
    27.2
  14. 14WłocławekKujawsko-Pomorskie
    26.4
  15. 14Jastrzębie ZdrójSilesia
    26.4
  16. 16OpoleOpole Voivodeship
    26.1
  17. 17TarnówLesser Poland
    25.8
  18. 17WrocławLower Silesia
    25.8
  19. 19NiskoSubcarpathia
    25.0
  20. 20ŁódźŁódź Voivodeship
    24.0
  21. 21ŻaryLubusz
    23.7
  22. 22StarachowiceŚwiętokrzyskie
    23.2
  23. 23DębicaSubcarpathia
    22.8
  24. 24RadomMazovia
    22.6
  25. 25ToruńKujawsko-Pomorskie
    22.5
  26. 26JarosławSubcarpathia
    22.2
  27. 27RzeszówSubcarpathia
    22.1
  28. 28ŻyrardówMazovia
    21.6
  29. 29OtwockMazovia
    21.5
  30. 29AugustówPodlasie
    21.5
  31. 31KielceŚwiętokrzyskie
    21.4
  32. 31BrzegOpole Voivodeship
    21.4
  33. 33SulechówLubusz
    21.0
  34. 34LegionowoMazovia
    20.6
  35. 35PrzemyślSubcarpathia
    20.5
  36. 36WawerMazovia
    20.3
  37. 37ElblągWarmia-Masuria
    19.9
  38. 38BydgoszczKujawsko-Pomorskie
    19.6
  39. 39MielecSubcarpathia
    19.3
  40. 40ZamośćLublin
    19.2
  41. 40PruszkówMazovia
    19.2
  42. 40PłockMazovia
    19.2
  43. 43Konstancin-JeziornaMazovia
    18.9
  44. 44KatowiceSilesia
    18.8
  45. 45WarsawMazovia
    18.7
  46. 46LublinLublin
    18.4
  47. 47Kędzierzyn-KoźleOpole Voivodeship
    18.1
  48. 47GdyniaPomerania
    18.1
  49. 49BiałystokPodlasie
    17.5
  50. 50GdańskPomerania
    16.9
  51. 51OlsztynWarmia-Masuria
    16.6
  52. 51SzczecinWest Pomerania
    16.6
  53. 53Zielona GóraLubusz
    16.1
  54. 53SopotPomerania
    16.1
  55. 55CiechanówMazovia
    15.9
  56. 56KołobrzegWest Pomerania
    14.7
  57. 57SuwałkiPodlasie
    13.3
  58. 57EłkWarmia-Masuria
    13.3
  59. 59KościerzynaPomerania
    12.7
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

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SmogRank, most polluted cities in Poland, PM2.5, December 2025, smogrank.com/pl/history/2025-12 (accessed 2 Oct 2026).

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