Climate almanac
Napa
California, United States · 38.30°, -122.29°
What is the weather like in Napa in January?
In January, Napa is typically 60°F (15°C) during the day and 44°F (6°C) at night. The month brings about 5.2 in (131 mm) of precipitation in total.
- Average high60°F (15°C)
- Average low44°F (6°C)
- Precipitation5.2 in (131 mm)
- Clear or mostly clear days7
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)