Pollution in Lyon: poor air quality this Wednesday
Air quality will be generally poor in Lyon and throughout the Lyon metropolitan area on Wednesday, June 25, 2025.
While this Wednesday will be synonymous with stifling heat in Lyon and the entire metropolitan area, air quality will also be degraded. On a very hot day, where the mercury could reach 39 degrees locally, and with a strong southerly wind, ozone levels are expected to approach, but not exceed, the information thresholds.
Atmo thus classifies multi-pollutants and ozone as poor and the rest of the indicators as average.
Lyon Capitale
