SmogRank / World / Chile / August 2026

Most polluted cities in Chile, August 2026

44 cities in Chile ranked by their average PM2.5 over the 31 days. Worst: Coyhaique at 109.4 µg/m³, #61 of 2,590 cities in the world. Cleanest: Calama at 15.2. A city needs measurements on 70% of the days to be ranked.

← Coyhaique 109.4 µg/m³ 100 µg/m³0
Every city in Chile ranked for August 2026, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1CoyhaiqueAysén
    189
  2. 2OsornoLos Lagos Region
    156
  3. 3Puerto VarasLos Lagos Region
    150
  4. 4NacimientoBiobio
    149
  5. 5HualpénBiobio
    147
  6. 6ValdiviaLos Ríos Region
    136
  7. 7LinaresMaule Region
    131
  8. 8CuranilahueBiobio
    125
  9. 9ChillánÑuble
    119
  10. 10CuricóMaule Region
    119
  11. 11La UniónLos Ríos Region
    118
  12. 12San CarlosÑuble
    110
  13. 12Puerto AysénAysén
    110
  14. 14Puerto MonttLos Lagos Region
    106
  15. 15TemucoAraucania
    102
  16. 16HualquiBiobio
    102
  17. 17TalcaMaule Region
    102
  18. 18VillarricaAraucania
    99
  19. 19RancaguaO'Higgins Region
    97
  20. 20RengoO'Higgins Region
    97
  21. 21SantiagoSantiago Metropolitan
    96
  22. 22CauquenesMaule Region
    96
  23. 23TalcahuanoBiobio
    95
  24. 24Los ÁngelesBiobio
    93
  25. 25CoronelBiobio
    92
  26. 26TalaganteSantiago Metropolitan
    90
  27. 27Puente AltoSantiago Metropolitan
    89
  28. 27San Pedro de la PazBiobio
    89
  29. 29ToméBiobio
    86
  30. 30ChiguayanteBiobio
    80
  31. 31LotaBiobio
    79
  32. 32QuilpuéValparaiso
    79
  33. 33ConcepciónBiobio
    78
  34. 34ConcónValparaiso
    75
  35. 35QuillotaValparaiso
    74
  36. 36AntofagastaAntofagasta
    74
  37. 37QuinteroValparaiso
    72
  38. 38La SerenaCoquimbo Region
    72
  39. 39AricaArica y Parinacota Region
    71
  40. 40CoquimboCoquimbo Region
    70
  41. 41Viña del MarValparaiso
    70
  42. 42TocopillaAntofagasta
    67
  43. 43Alto HospicioTarapacá
    63
  44. 44CalamaAntofagasta
    62
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, August 2026 · Chile now

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

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