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 µg/m³ 90 µg/m³0
Every city in Chile ranked for July 2025, 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
    228
  2. 2OsornoLos Lagos Region
    180
  3. 3NacimientoBiobio
    173
  4. 4LinaresMaule Region
    173
  5. 5VillarricaAraucania
    142
  6. 6CuricóMaule Region
    121
  7. 7TemucoAraucania
    118
  8. 8RancaguaO'Higgins Region
    108
  9. 9RengoO'Higgins Region
    104
  10. 10TalaganteSantiago Metropolitan
    104
  11. 11Puerto VarasLos Lagos Region
    101
  12. 12ValdiviaLos Ríos Region
    97
  13. 12SantiagoSantiago Metropolitan
    97
  14. 14San CarlosÑuble
    97
  15. 15ChillánÑuble
    90
  16. 16HualpénBiobio
    88
  17. 17Puente AltoSantiago Metropolitan
    88
  18. 18TalcaMaule Region
    86
  19. 19Los ÁngelesBiobio
    86
  20. 20HualquiBiobio
    83
  21. 21CoronelBiobio
    81
  22. 22Puerto AysénAysén
    78
  23. 22La UniónLos Ríos Region
    78
  24. 24Puerto MonttLos Lagos Region
    75
  25. 25QuilpuéValparaiso
    71
  26. 26CauquenesMaule Region
    70
  27. 27CuranilahueBiobio
    68
  28. 28QuillotaValparaiso
    65
  29. 29TalcahuanoBiobio
    58
  30. 30QuinteroValparaiso
    54
  31. 31ConcónValparaiso
    54
  32. 32ConcepciónBiobio
    51
  33. 33ChiguayanteBiobio
    50
  34. 34ToméBiobio
    48
  35. 35San Pedro de la PazBiobio
    47
  36. 36Viña del MarValparaiso
    45
  37. 37CoquimboCoquimbo Region
    43
  38. 38La SerenaCoquimbo Region
    42
  39. 39CopiapóAtacama
    40
  40. 40TocopillaAntofagasta
    38
  41. 41AricaArica y Parinacota Region
    37
  42. 42Alto HospicioTarapacá
    32
  43. 43LotaBiobio
    30
  44. 44CalamaAntofagasta
    30
Good0–50
Satisfactory51–100
Moderate101–200
Poor201–300
Very poor301–400
Severe401+

India's National Air Quality Index (CPCB), PM2.5 sub-index. 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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