SmogRank / Countries / Spain / August 2025

Most polluted cities in Spain, August 2025

86 cities in Spain ranked by their average PM2.5 over the 31 days. Worst: Ponferrada at 44.5 µg/m³, #14 of 2,284 cities in the world. Cleanest: Pontevedra at 3.5. A city needs measurements on 70% of the days to be ranked.

  1. 1PonferradaCastille and León
    44.5
  2. 2Santa LucíaCanary Islands
    28.0
  3. 3LeónCastille and León
    26.5
  4. 4FuenlabradaMadrid
    24.3
  5. 5MóstolesMadrid
    23.5
  6. 6OurenseGalicia
    23.4
  7. 7JaénAndalusia
    22.9
  8. 8ManzanaresCastille-La Mancha
    21.2
  9. 9ValdemoroMadrid
    20.2
  10. 10JumillaMurcia
    19.9
  11. 11LorcaMurcia
    19.7
  12. 12ManlleuCatalonia
    19.3
  13. 13Medina del CampoCastille and León
    18.8
  14. 14PalenciaCastille and León
    18.1
  15. 15Mollet del VallèsCatalonia
    17.8
  16. 16MadridMadrid
    17.2
  17. 17AlcantarillaMurcia
    16.9
  18. 18MurciaMurcia
    16.5
  19. 19ValenciaValencia
    16.3
  20. 20BurgosCastille and León
    16.2
  21. 21CosladaMadrid
    16.1
  22. 22BailénAndalusia
    16.0
  23. 23Molina de SeguraMurcia
    15.8
  24. 24Barrio de PeralMurcia
    15.7
  25. 25LleidaCatalonia
    15.5
  26. 25Aranda de DueroCastille and León
    15.5
  27. 27Alcalá de HenaresMadrid
    15.1
  28. 28SalamancaCastille and León
    15.0
  29. 29GranadaAndalusia
    14.9
  30. 30CaravacaMurcia
    14.7
  31. 30CandelariaCanary Islands
    14.7
  32. 30LogroñoLa Rioja
    14.7
  33. 33BarcelonaCatalonia
    14.5
  34. 34Torrejón de ArdozMadrid
    14.4
  35. 35SoriaCastille and León
    14.2
  36. 36CórdobaAndalusia
    14.1
  37. 37ArrecifeCanary Islands
    14.0
  38. 38TorreviejaValencia
    13.8
  39. 39AlgeteMadrid
    13.5
  40. 40CartagenaMurcia
    13.3
  41. 41GironaCatalonia
    13.0
  42. 42Collado-VillalbaMadrid
    12.9
  43. 43Gasteiz / VitoriaBasque Country
    12.8
  44. 44ZaragozaAragon
    12.4
  45. 44GijónAsturias
    12.4
  46. 46VillenaValencia
    11.6
  47. 47SaguntoValencia
    11.5
  48. 47AvilésAsturias
    11.5
  49. 49TarragonaCatalonia
    11.4
  50. 50ZarautzBasque Country
    11.3
  51. 51La Línea de la ConcepciónAndalusia
    11.1
  52. 52San RoqueAndalusia
    10.7
  53. 52OriaBasque Country
    10.7
  54. 54Laudio / LlodioBasque Country
    10.6
  55. 54DurangoBasque Country
    10.6
  56. 56LugoGalicia
    10.5
  57. 57BilbaoBasque Country
    10.2
  58. 57AmorebietaBasque Country
    10.2
  59. 59PamplonaNavarre
    10.0
  60. 60VigoGalicia
    9.9
  61. 60SalouCatalonia
    9.9
  62. 62TolosaBasque Country
    9.8
  63. 63AlgecirasAndalusia
    9.6
  64. 63TudelaNavarre
    9.6
  65. 65OviedoAsturias
    9.5
  66. 66LalínGalicia
    9.4
  67. 67Castelló de la PlanaValencia
    9.2
  68. 67CulleredoGalicia
    9.2
  69. 69GetxoBasque Country
    9.1
  70. 69ArteixoGalicia
    9.1
  71. 71Donostia / San SebastiánBasque Country
    9.0
  72. 72Grao de MurviedroValencia
    8.9
  73. 73Los BarriosAndalusia
    8.5
  74. 74A CoruñaGalicia
    8.4
  75. 74HernaniBasque Country
    8.4
  76. 76SanturtziBasque Country
    8.0
  77. 77Miranda de EbroCastille and León
    7.8
  78. 78OntinyentValencia
    7.2
  79. 79NarónGalicia
    6.8
  80. 80EldaValencia
    6.7
  81. 80Santiago de CompostelaGalicia
    6.7
  82. 82BermeoBasque Country
    6.1
  83. 83FerrolGalicia
    5.4
  84. 84BenicàssimValencia
    4.9
  85. 85AlicanteValencia
    4.0
  86. 86PontevedraGalicia
    3.5
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, August 2025 · Spain now

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SmogRank, most polluted cities in Spain, PM2.5, August 2025, smogrank.com/es/history/2025-08 (accessed 2 Oct 2026).

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