April in Mulhouse averages a daily high of 16.6°C with nights around 4.8°C. Expect roughly 11.3 wet days totalling 57.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Mulhouse is May–September.
Based on BASEL MULHOUSE, FR (20.5km), 1995–2024. 30 years of April data.