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Napa
Average sun percentage
Climate ▸Forecast ▸December ▸January ▸
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Average percent of sunshine in Napa (CA)

The mean percent of sunhours during the day in Napa (California), the United States of America.


  • The sun shines on average 79.0% in April making it the most sunny month.
  • On average, December has the lowest percentage of sunshine with 55.0%.

Forecast: is it sunny in Napa (CA)?

Sat   Dec 28
16°C | 11°C
SW 5 m/s
6.6 mm
overcast and heavy rain

overcast and heavy rain

hourly forecast
Sun   Dec 29
16°C | 7°C
W 7 m/s
14 mm
partly cloudy and rain

partly cloudy and rain

hourly forecast
Mon   Dec 30
14°C | 4°C
SW 2 m/s
almost clear and no rain

almost clear and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

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