December in Most averages a daily high of -1.3°C with nights around -5.5°C. Expect roughly 15.7 wet days totalling 55.9mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Most is May–August.
Based on MILESOVKA, EZ (21.6km), 1995–2024. 10 years of December data.