December in Sevastopol averages a daily high of 5.8°C with nights around -1.4°C. Expect roughly 14.2 wet days totalling 48.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Sevastopol is May–June.
Based on SIMFEROPOL, UP (49.5km), 1995–2024. 12 years of December data.