SmogRank / Countries / Australia / January 2026

Most polluted cities in Australia, January 2026

9 cities in Australia ranked by their average PM2.5 over the 31 days. Worst: Wangaratta at 22.2 µg/m³, #233 of 2,047 cities in the world. Cleanest: Mildura at 3.6. A city needs measurements on 70% of the days to be ranked.

  1. 1WangarattaVictoria
    22.2
  2. 2Bacchus MarshVictoria
    9.5
  3. 3GeelongVictoria
    8.8
  4. 4Melbournelow-cost sensorsVictoria
    7.9
  5. 5TraralgonVictoria
    6.6
  6. 6BendigoVictoria
    5.7
  7. 7BallaratVictoria
    5.6
  8. 8Sydneylow-cost sensorsNew South Wales
    5.2
  9. 9MilduraVictoria
    3.6
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, January 2026 · Australia now

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

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