April in Lübeck averages a daily high of 13.8°C with nights around 2.8°C. Expect roughly 10.7 wet days totalling 37.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Lübeck is May–September.
Based on LUBECK BLANKENSEE, GM (6.6km), 1995–2024. 30 years of April data.