SmogRank / Countries / Greece / December 2025

Most polluted cities in Greece, December 2025

7 cities in Greece ranked by their average PM2.5 over the 31 days. Worst: Volos at 23.7 µg/m³, #281 of 2,360 cities in the world. Cleanest: Khalándrion at 9.7. A city needs measurements on 70% of the days to be ranked.

  1. 1VolosThessaly
    23.7
  2. 2ThessaloníkiCentral Macedonia
    23.5
  3. 3AthensAttica
    14.8
  4. 4AcharnésAttica
    11.3
  5. 5KozániWest Macedonia
    11.1
  6. 6PylaíaCentral Macedonia
    10.6
  7. 7KhalándrionAttica
    9.7
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, December 2025 · Greece now