June in Ulm averages a daily high of 21°C with nights around 9.8°C. Expect roughly 13.7 wet days totalling 90.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Ulm is June–September.
Based on MERKLINGEN, GM (21km), 1995–2024. 30 years of June data.