April in Konstanz averages a daily high of 16°C with nights around 5.1°C. Expect roughly 11.4 wet days totalling 56.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Konstanz is May–September.
Based on KONSTANZ, GM (2.3km), 1995–2024. 30 years of April data.