January in Erfurt averages a daily high of 2.7°C with nights around -2.5°C. Expect roughly 12 wet days totalling 25.8mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Erfurt is June–September.
Based on ERFURT BINDERSLEBEN, GM (5.1km), 1995–2024. 30 years of January data.