December in Bacău averages a daily high of 3.2°C with nights around -3.6°C. Expect roughly 9.8 wet days totalling 34.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Bacău is May–June.
Based on BACAU, RO (3.8km), 1995–2024. 30 years of December data.