July in Mülheim averages a daily high of 23.4°C with nights around 14.2°C. Expect roughly 14.2 wet days totalling 91.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Mülheim is May–September.
Based on ESSEN BREDENEY, GM (6.8km), 1995–2024. 30 years of July data.