July in Hildesheim averages a daily high of 23.4°C with nights around 12.9°C. Expect roughly 14.1 wet days totalling 81.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Hildesheim is May–September.
Based on SALZHEMMENDORF LAUENSTEIN, GM (28.3km), 1995–2024. 12 years of July data.