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
Every city in Chile ranked for August 2026, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1CoyhaiqueAysén
    10
  2. 2OsornoLos Lagos Region
    8
  3. 3Puerto VarasLos Lagos Region
    7
  4. 4NacimientoBiobio
    7
  5. 5HualpénBiobio
    7
  6. 6ValdiviaLos Ríos Region
    6
  7. 7LinaresMaule Region
    6
  8. 8CuranilahueBiobio
    5
  9. 9ChillánÑuble
    5
  10. 10CuricóMaule Region
    5
  11. 11La UniónLos Ríos Region
    5
  12. 12San CarlosÑuble
    4
  13. 12Puerto AysénAysén
    4
  14. 14Puerto MonttLos Lagos Region
    4
  15. 15TemucoAraucania
    4
  16. 16HualquiBiobio
    4
  17. 17TalcaMaule Region
    4
  18. 18VillarricaAraucania
    3
  19. 19RancaguaO'Higgins Region
    3
  20. 20RengoO'Higgins Region
    3
  21. 21SantiagoSantiago Metropolitan
    3
  22. 22CauquenesMaule Region
    3
  23. 23TalcahuanoBiobio
    3
  24. 24Los ÁngelesBiobio
    3
  25. 25CoronelBiobio
    3
  26. 26TalaganteSantiago Metropolitan
    3
  27. 27Puente AltoSantiago Metropolitan
    3
  28. 27San Pedro de la PazBiobio
    3
  29. 29ToméBiobio
    3
  30. 30ChiguayanteBiobio
    3
  31. 31LotaBiobio
    3
  32. 32QuilpuéValparaiso
    3
  33. 33ConcepciónBiobio
    3
  34. 34ConcónValparaiso
    2
  35. 35QuillotaValparaiso
    2
  36. 36AntofagastaAntofagasta
    2
  37. 37QuinteroValparaiso
    2
  38. 38La SerenaCoquimbo Region
    2
  39. 39AricaArica y Parinacota Region
    2
  40. 40CoquimboCoquimbo Region
    2
  41. 41Viña del MarValparaiso
    2
  42. 42TocopillaAntofagasta
    2
  43. 43Alto HospicioTarapacá
    2
  44. 44CalamaAntofagasta
    2
Low1–3
Moderate4–6
High7–9
Very high10

The UK's Daily Air Quality Index (1 to 10), PM2.5 bands. 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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