Climate almanac
Semily
Liberec Region, Czechia · 50.60°, 15.34°
What is the weather like in Semily in December?
In December, Semily is typically 37°F (3°C) during the day and 31°F (-1°C) at night. The month brings about 2.6 in (65 mm) of precipitation in total. Snowfall averages about 5.5 in (140 mm) over the month.
- Average high37°F (3°C)
- Average low31°F (-1°C)
- Precipitation2.6 in (65 mm)
- Clear or mostly clear days2
- Snowfall5.5 in (140 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)