August in Lyon 03 averages a daily high of 27.4°C with nights around 16.6°C. Expect roughly 8.3 wet days totalling 67.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Lyon 03 is May–September.
Based on LYON ST EXUPERY, FR (18km), 1995–2024. 30 years of August data.