December in Tatabánya averages a daily high of 4.1°C with nights around -1.6°C. Expect roughly 10.3 wet days totalling 42.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Tatabánya is April–October.
Based on HURBANOVO, LO (33.9km), 1995–2024. 27 years of December data.