SmogRank / Countries / Greece / September 2025

Most polluted cities in Greece, September 2025

6 cities in Greece ranked by their average PM2.5 over the 30 days. Worst: Thessaloníki at 10.1 µg/m³, #437 of 2,439 cities in the world. Cleanest: Pylaía at 5.7. A city needs measurements on 70% of the days to be ranked.

  1. 1ThessaloníkiCentral Macedonia
    10.1
  2. 2KhalándrionAttica
    9.3
  3. 3AcharnésAttica
    9.2
  4. 4AthensAttica
    8.8
  5. 5VolosThessaly
    6.1
  6. 6PylaíaCentral Macedonia
    5.7
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, September 2025 · Greece now

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SmogRank, most polluted cities in Greece, PM2.5, September 2025, smogrank.com/gr/history/2025-09 (accessed 2 Oct 2026).

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