April in Maastricht averages a daily high of 14.9°C with nights around 5°C. Expect roughly 10.8 wet days totalling 41.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Maastricht is May–September.
Based on MAASTRICHT, NL (8.1km), 1995–2024. 30 years of April data.