December in Deva averages a daily high of 4°C with nights around -2.2°C. Expect roughly 10.2 wet days totalling 37.9mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Deva is May–October.
Based on DEVA, RO (1.8km), 1995–2024. 30 years of December data.