Climate almanac
Napa
California, United States · 38.30°, -122.29°
What is the weather like in Napa in May?
In May, Napa is typically 78°F (26°C) during the day and 53°F (12°C) at night. The month brings about 0.7 in (17 mm) of precipitation in total.
- Average high78°F (26°C)
- Average low53°F (12°C)
- Precipitation0.7 in (17 mm)
- Clear or mostly clear days20
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)