SmogRank / Countries / Spain / August 2026

Most polluted cities in Spain, August 2026

45 cities in Spain ranked by their average PM2.5 over the 31 days. Worst: Alcalá de Guadaira at 16.8 µg/m³, #213 of 2,312 cities in the world. Cleanest: Collado-Villalba at 4.5. A city needs measurements on 70% of the days to be ranked.

  1. 1Alcalá de GuadairaAndalusia
    16.8
  2. 2HuelvaAndalusia
    15.6
  3. 3ManlleuCatalonia
    14.1
  4. 4AlcantarillaMurcia
    13.7
  5. 5SevillaAndalusia
    13.6
  6. 6Barrio de PeralMurcia
    13.5
  7. 7JumillaMurcia
    13.2
  8. 8MurciaMurcia
    13.1
  9. 9CaravacaMurcia
    11.6
  10. 10Molina de SeguraMurcia
    11.5
  11. 10BailénAndalusia
    11.5
  12. 12ManzanaresCastille-La Mancha
    10.9
  13. 12MadridMadrid
    10.9
  14. 14La Línea de la ConcepciónAndalusia
    10.6
  15. 14ZaragozaAragon
    10.6
  16. 14Alcalá de HenaresMadrid
    10.6
  17. 17San RoqueAndalusia
    10.5
  18. 18AlgecirasAndalusia
    10.4
  19. 19LorcaMurcia
    10.3
  20. 20CartagenaMurcia
    10.1
  21. 21GranadaAndalusia
    9.9
  22. 22Gasteiz / VitoriaBasque Country
    9.8
  23. 23Laudio / LlodioBasque Country
    9.6
  24. 24JaénAndalusia
    9.3
  25. 25GijónAsturias
    9.0
  26. 26ZarautzBasque Country
    8.7
  27. 26DurangoBasque Country
    8.7
  28. 28CártamaAndalusia
    8.3
  29. 28BilbaoBasque Country
    8.3
  30. 30TolosaBasque Country
    8.0
  31. 31CandelariaCanary Islands
    7.7
  32. 31OriaBasque Country
    7.7
  33. 33AmorebietaBasque Country
    7.6
  34. 34SanturtziBasque Country
    7.0
  35. 34GetxoBasque Country
    7.0
  36. 36AlgeteMadrid
    6.6
  37. 36CeutaCeuta
    6.6
  38. 38Donostia / San SebastiánBasque Country
    6.5
  39. 39HernaniBasque Country
    6.3
  40. 40Los BarriosAndalusia
    5.9
  41. 41BermeoBasque Country
    5.7
  42. 42OviedoAsturias
    5.5
  43. 43ArrecifeCanary Islands
    5.1
  44. 44SamaAsturias
    4.6
  45. 45Collado-VillalbaMadrid
    4.5
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 2026 · Spain now

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

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