December in Sivas averages a daily high of 5.2°C with nights around -2.5°C. Expect roughly 10.9 wet days totalling 42.9mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Sivas is July–September.
Based on SIVAS, TU (0.2km), 1995–2024. 16 years of December data.