December in Tulcea averages a daily high of 4.5°C with nights around -3.1°C. Expect roughly 8.8 wet days totalling 31.9mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Tulcea is August–October.
Based on IZMAIL, UP (21.2km), 1995–2024. 11 years of December data.