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United States of AmericaUnited States of America California Union City
Union City
Average sun percentage
Climate ▸Forecast ▸December ▸January ▸
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Average percent of sunshine in Union City (CA)

The mean percent of sunhours during the day in Union City (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 Union City (CA)?

Sat   Dec 28
17°C | 11°C
W 3 m/s
0.3 mm
broken clouds and chance of slight rain

broken clouds and chance of slight rain

hourly forecast
Sun   Dec 29
15°C | 9°C
S 6 m/s
6.9 mm
partly cloudy and rain

partly cloudy and rain

hourly forecast
Mon   Dec 30
14°C | 7°C
W 3 m/s
partly cloudy and no rain

partly cloudy and no rain

hourly forecast
5-Day Forecast 10-Day Forecast

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