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
    109.4
  2. 2OsornoLos Lagos Region
    62.8
  3. 3Puerto VarasLos Lagos Region
    55.4
  4. 4NacimientoBiobio
    55.0
  5. 5HualpénBiobio
    54.2
  6. 6ValdiviaLos Ríos Region
    49.8
  7. 7LinaresMaule Region
    47.6
  8. 8CuranilahueBiobio
    45.1
  9. 9ChillánÑuble
    43.0
  10. 10CuricóMaule Region
    42.7
  11. 11La UniónLos Ríos Region
    42.6
  12. 12San CarlosÑuble
    39.1
  13. 12Puerto AysénAysén
    39.1
  14. 14Puerto MonttLos Lagos Region
    37.4
  15. 15TemucoAraucania
    36.0
  16. 16HualquiBiobio
    35.9
  17. 17TalcaMaule Region
    35.8
  18. 18VillarricaAraucania
    35.1
  19. 19RancaguaO'Higgins Region
    33.8
  20. 20RengoO'Higgins Region
    33.7
  21. 21SantiagoSantiago Metropolitan
    33.2
  22. 22CauquenesMaule Region
    33.1
  23. 23TalcahuanoBiobio
    32.5
  24. 24Los ÁngelesBiobio
    31.8
  25. 25CoronelBiobio
    31.1
  26. 26TalaganteSantiago Metropolitan
    30.2
  27. 27Puente AltoSantiago Metropolitan
    29.5
  28. 27San Pedro de la PazBiobio
    29.5
  29. 29ToméBiobio
    27.7
  30. 30ChiguayanteBiobio
    24.9
  31. 31LotaBiobio
    24.3
  32. 32QuilpuéValparaiso
    24.2
  33. 33ConcepciónBiobio
    23.7
  34. 34ConcónValparaiso
    21.8
  35. 35QuillotaValparaiso
    21.4
  36. 36AntofagastaAntofagasta
    21.2
  37. 37QuinteroValparaiso
    20.3
  38. 38La SerenaCoquimbo Region
    20.2
  39. 39AricaArica y Parinacota Region
    19.6
  40. 40CoquimboCoquimbo Region
    19.3
  41. 41Viña del MarValparaiso
    19.2
  42. 42TocopillaAntofagasta
    17.8
  43. 43Alto HospicioTarapacá
    15.6
  44. 44CalamaAntofagasta
    15.2
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

PM2.5 in µg/m³, coloured by the US EPA's PM2.5 categories. 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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