SmogRank / World / Chile / July 2025

Most polluted cities in Chile, July 2025

44 cities in Chile ranked by their average PM2.5 over the 31 days. Worst: Coyhaique at 99.3 µg/m³, #2 of 2,499 cities in the world. Cleanest: Calama at 17.7. A city needs measurements on 70% of the days to be ranked.

← Coyhaique 99.3
Every city in Chile ranked for July 2025, 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
    9
  3. 3NacimientoBiobio
    9
  4. 4LinaresMaule Region
    9
  5. 5VillarricaAraucania
    8
  6. 6CuricóMaule Region
    7
  7. 7TemucoAraucania
    7
  8. 8RancaguaO'Higgins Region
    7
  9. 9RengoO'Higgins Region
    7
  10. 10TalaganteSantiago Metropolitan
    7
  11. 11Puerto VarasLos Lagos Region
    7
  12. 12ValdiviaLos Ríos Region
    6
  13. 12SantiagoSantiago Metropolitan
    6
  14. 14San CarlosÑuble
    6
  15. 15ChillánÑuble
    6
  16. 16HualpénBiobio
    6
  17. 17Puente AltoSantiago Metropolitan
    6
  18. 18TalcaMaule Region
    6
  19. 19Los ÁngelesBiobio
    6
  20. 20HualquiBiobio
    5
  21. 21CoronelBiobio
    5
  22. 22Puerto AysénAysén
    5
  23. 22La UniónLos Ríos Region
    5
  24. 24Puerto MonttLos Lagos Region
    5
  25. 25QuilpuéValparaiso
    5
  26. 26CauquenesMaule Region
    5
  27. 27CuranilahueBiobio
    5
  28. 28QuillotaValparaiso
    4
  29. 29TalcahuanoBiobio
    4
  30. 30QuinteroValparaiso
    4
  31. 31ConcónValparaiso
    4
  32. 32ConcepciónBiobio
    4
  33. 33ChiguayanteBiobio
    4
  34. 34ToméBiobio
    3
  35. 35San Pedro de la PazBiobio
    3
  36. 36Viña del MarValparaiso
    3
  37. 37CoquimboCoquimbo Region
    3
  38. 38La SerenaCoquimbo Region
    3
  39. 39CopiapóAtacama
    3
  40. 40TocopillaAntofagasta
    3
  41. 41AricaArica y Parinacota Region
    3
  42. 42Alto HospicioTarapacá
    2
  43. 43LotaBiobio
    2
  44. 44CalamaAntofagasta
    2
Low risk1–3
Moderate risk4–6
High risk7–10
Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. 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, July 2025 · Chile now

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SmogRank, most polluted cities in Chile, PM2.5, July 2025, smogrank.com/cl/history/2025-07 (accessed 2 Oct 2026).

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