Climate almanac
Napa
California, United States · 38.30°, -122.29°
What is the weather like in Napa in March?
In March, Napa is typically 65°F (19°C) during the day and 46°F (8°C) at night. The month brings about 4.1 in (103 mm) of precipitation in total.
- Average high65°F (19°C)
- Average low46°F (8°C)
- Precipitation4.1 in (103 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)