SmogRank / Countries / Latvia / October 2025

Most polluted cities in Latvia, October 2025

4 cities in Latvia ranked by their average PM2.5 over the 31 days. Worst: Rēzekne at 12.8 µg/m³, #300 of 2,110 cities in the world. Cleanest: Riga at 7.1. A city needs measurements on 70% of the days to be ranked.

  1. 1RēzekneRēzekne
    12.8
  2. 2VentspilsVentspils
    11.3
  3. 3LiepājaLiepaja
    10.1
  4. 4RigaRiga
    7.1
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, October 2025 · Latvia now