April in Nijmegen averages a daily high of 15.3°C with nights around 4.6°C. Expect roughly 11.2 wet days totalling 46mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Nijmegen is May–September.
Based on KLEVE, GM (18.9km), 1995–2024. 30 years of April data.