United States of AmericaCountries United States of America California Cupertino Sun Percentage
United States of AmericaUnited States of America California Cupertino
Cupertino
Average sun percentage
Climate ▸Forecast ▸December ▸January ▸
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Average percent of sunshine in Cupertino (CA)

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


  • The sun shines on average 78.0% in April making it the most sunny month.
  • On average, December has the lowest percentage of sunshine with 54.0%.

Forecast: is it sunny in Cupertino (CA)?

Wed   Dec 25
14°C | 5°C
E 2 m/s
broken clouds and no rain

broken clouds and no rain

hourly forecast
Thu   Dec 26
17°C | 8°C
S 2 m/s
1.7 mm
broken clouds and slight rain

broken clouds and slight rain

hourly forecast
Fri   Dec 27
18°C | 10°C
NW 2 m/s
7.2 mm
partly cloudy and rain

partly cloudy and rain

hourly forecast
5-Day Forecast 10-Day Forecast

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