December in Bayreuth averages a daily high of 3.5°C with nights around -1.6°C. Expect roughly 16.5 wet days totalling 60.6mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Bayreuth is May–September.
Based on HEINERSREUTH VOLLHOF, GM (4.7km), 1995–2024. 30 years of December data.