January in Leverkusen averages a daily high of 6.3°C with nights around 1.6°C. Expect roughly 15.8 wet days totalling 66.8mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Leverkusen is May–September.
Based on KOLN STAMMHEIM, GM (4.4km), 1995–2024. 30 years of January data.