June in Konstanz averages a daily high of 24.3°C with nights around 13.3°C. Expect roughly 13.7 wet days totalling 100.3mm. 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 June data.