Climate almanac
Tamalpais Valley
California, United States · 37.88°, -122.55°
What is the weather like in Tamalpais Valley in December?
In December, Tamalpais Valley is typically 58°F (14°C) during the day and 45°F (7°C) at night. The month brings about 4.3 in (110 mm) of precipitation in total.
- Average high58°F (14°C)
- Average low45°F (7°C)
- Precipitation4.3 in (110 mm)
- Clear or mostly clear days8
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)