January in Wolfenbüttel averages a daily high of 4.1°C with nights around -0.6°C. Expect roughly 14.9 wet days totalling 49.3mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Wolfenbüttel is May–September.
Based on BRAUNSCHWEIG, GM (15.4km), 1995–2024. 30 years of January data.