SmogRank / World / Chile / January 2026

Most polluted cities in Chile, January 2026

43 cities in Chile ranked by their average PM2.5 over the 31 days. Worst: Arica at 29.1 µg/m³, #181 of 2,281 cities in the world. Cleanest: Valdivia at 13.1. A city needs measurements on 70% of the days to be ranked.

← Arica 29.1
Every city in Chile ranked for January 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. 1AricaArica y Parinacota Region
    3
  2. 2TocopillaAntofagasta
    3
  3. 3Puente AltoSantiago Metropolitan
    3
  4. 4CopiapóAtacama
    3
  5. 5TalaganteSantiago Metropolitan
    3
  6. 6San CarlosÑuble
    3
  7. 7HualpénBiobio
    2
  8. 8SantiagoSantiago Metropolitan
    2
  9. 8CuricóMaule Region
    2
  10. 8ChillánÑuble
    2
  11. 11RancaguaO'Higgins Region
    2
  12. 12NacimientoBiobio
    2
  13. 12CauquenesMaule Region
    2
  14. 14ConcónValparaiso
    2
  15. 15QuinteroValparaiso
    2
  16. 15Los ÁngelesBiobio
    2
  17. 17Viña del MarValparaiso
    2
  18. 18QuilpuéValparaiso
    2
  19. 19HualquiBiobio
    2
  20. 19ConcepciónBiobio
    2
  21. 21ToméBiobio
    2
  22. 22RengoO'Higgins Region
    2
  23. 23QuillotaValparaiso
    2
  24. 24CoronelBiobio
    2
  25. 25TalcaMaule Region
    2
  26. 26ChiguayanteBiobio
    2
  27. 27LinaresMaule Region
    2
  28. 28TalcahuanoBiobio
    2
  29. 28CalamaAntofagasta
    2
  30. 30San Pedro de la PazBiobio
    2
  31. 31AntofagastaAntofagasta
    2
  32. 32CoquimboCoquimbo Region
    2
  33. 33La SerenaCoquimbo Region
    2
  34. 34CuranilahueBiobio
    2
  35. 35Puerto VarasLos Lagos Region
    2
  36. 36Alto HospicioTarapacá
    2
  37. 37VillarricaAraucania
    2
  38. 38OsornoLos Lagos Region
    2
  39. 39CoyhaiqueAysén
    2
  40. 40La UniónLos Ríos Region
    2
  41. 41Puerto MonttLos Lagos Region
    2
  42. 42TemucoAraucania
    2
  43. 43ValdiviaLos Ríos Region
    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, January 2026 · Chile now

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SmogRank, most polluted cities in Chile, PM2.5, January 2026, smogrank.com/cl/history/2026-01 (accessed 2 Oct 2026).

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