January in Lünen averages a daily high of 5.6°C with nights around 0.6°C. Expect roughly 16.8 wet days totalling 62.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Lünen is May–September.
Based on LUDINGHAUSEN BROCHTRUP, GM (16.9km), 1995–2024. 20 years of January data.