December in Chernogorsk averages a daily high of -8.9°C with nights around -19.3°C. Expect roughly 8.1 wet days totalling 12.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Chernogorsk is May–August.
Based on MINUSINSK, RS (28.5km), 1995–2024. 26 years of December data.