December in Lübeck averages a daily high of 4.6°C with nights around -0.1°C. Expect roughly 16 wet days totalling 59.5mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Lübeck is May–September.
Based on LUBECK BLANKENSEE, GM (6.6km), 1995–2024. 30 years of December data.