Climate almanac
Isumi
Chiba, Japan · 35.23°, 140.40°
What is the weather like in Isumi in December?
In December, Isumi is typically 56°F (13°C) during the day and 48°F (9°C) at night. The month brings about 3.8 in (96 mm) of precipitation in total.
- Average high56°F (13°C)
- Average low48°F (9°C)
- Precipitation3.8 in (96 mm)
- Clear or mostly clear days14
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)