SmogRank / Countries / South Africa / August 2025

Most polluted cities in South Africa, August 2025

3 cities in South Africa ranked by their average PM2.5 over the 31 days. Worst: Vereeniging at 50.7 µg/m³, #11 of 2,289 cities in the world. Cleanest: Richards Bay at 16.2. A city needs measurements on 70% of the days to be ranked.

  1. 1Vereeniginglow-cost sensorsGauteng
    50.7
  2. 2Shakaskraallow-cost sensorsKwaZulu-Natal
    28.9
  3. 3Richards Baylow-cost sensorsKwaZulu-Natal
    16.2
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, August 2025 · South Africa now