Climate almanac
Kosai
Shizuoka, Japan · 34.70°, 137.52°
What is the weather like in Kosai in December?
In December, Kosai is typically 55°F (13°C) during the day and 41°F (5°C) at night. The month brings about 2.4 in (60 mm) of precipitation in total.
- Average high55°F (13°C)
- Average low41°F (5°C)
- Precipitation2.4 in (60 mm)
- Clear or mostly clear days19
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)