April in Lyon 03 averages a daily high of 17.2°C with nights around 7.3°C. Expect roughly 10.2 wet days totalling 70.1mm. Generally workable, with some weather to plan around.
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 April data.