May in Lyon 03 averages a daily high of 21.2°C with nights around 11.4°C. Expect roughly 11.8 wet days totalling 83.8mm. 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 May data.