April in Hildesheim averages a daily high of 13.8°C with nights around 4.1°C. Expect roughly 12.2 wet days totalling 46.1mm. 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 April data.