December in Pyatigorsk averages a daily high of 3.7°C with nights around -3.8°C. Expect roughly 8.9 wet days totalling 24.6mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Pyatigorsk is May–June.
Based on MINERAL NYE VODY, RS (17.1km), 1995–2024. 24 years of December data.