December in Kozeyevo averages a daily high of -2.4°C with nights around -6.6°C. Expect roughly 18 wet days totalling 51.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Kozeyevo is May–August.
Based on MOSCOW, RS (3.7km), 1995–2024. 24 years of December data.