SmogRank / Countries / Mexico / December 2024

Most polluted cities in Mexico, December 2024

11 cities in Mexico ranked by their average PM2.5 over the 31 days. Worst: Silao de la Victoria at 27.7 µg/m³, #95 of 2,078 cities in the world. Cleanest: Guanajuato at 13.5. A city needs measurements on 70% of the days to be ranked.

  1. 1Silao de la VictoriaGuanajuato
    27.7
  2. 1IrapuatoGuanajuato
    27.7
  3. 3TijuanaBaja California
    23.6
  4. 4León de los AldamaGuanajuato
    23.1
  5. 5Mexico CityMexico City
    21.9
  6. 6AbasoloGuanajuato
    19.4
  7. 7CelayaGuanajuato
    18.7
  8. 8San Luis de la PazGuanajuato
    17.3
  9. 9SalamancaGuanajuato
    17.2
  10. 10San Miguel de AllendeGuanajuato
    14.0
  11. 11GuanajuatoGuanajuato
    13.5
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, December 2024 · Mexico now

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SmogRank, most polluted cities in Mexico, PM2.5, December 2024, smogrank.com/mx/history/2024-12 (accessed 2 Oct 2026).

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