Average Monthly Sunshine hours in Napa (CA)

This graph shows the average number of hours per month that Napa receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

• On average, May is the sunniest month with 310 hours of sunshine.
• December has on average the lowest amount of sunshine with 160 hours.

Forecast: is it sunny in Napa (CA)?

Sat   Nov 23

15°C | 7°C

SW 18 km/h

2.9 mm

partly cloudy and rain

hourly forecast

Sun   Nov 24

15°C | 6°C

E 11 km/h

14 mm

broken clouds and rain

hourly forecast

Mon   Nov 25

15°C | 9°C

E 7 km/h

5.5 mm

overcast and rain

hourly forecast

5-Day Forecast 10-Day Forecast