December in Chornomors’k averages a daily high of 3.5°C with nights around -1.7°C. Expect roughly 8.6 wet days totalling 33.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Chornomors’k is May–September.
Based on ODESA, UP (20.2km), 1995–2024. 10 years of December data.