Napa weather in December 2021

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  • 13°C maximum daytime temperature in December in Napa13
    13°C max day temperature
  • 5 hours of sunshine per day
  • 10 days with some rainfall in December in Napa10
    10 days with some rainfall
  • 3°C minimum night-time temperature in December in Napa3
    3°C min night temperature
  • 10 hours of daylight per day in December in Napa10
    10 hours of daylight per day
  • No heat & humidity in December in Napa0
    No heat & humidity
  • 127 mm monthly rainfall in December in Napa127
    127 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Napa2
    2 (Low) UV index

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The December weather guide for Napa, California shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

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How warm is it in Napa in December?

Daytime temperatures usually reach 13°C in Napa in December, falling to 3°C at night.

How sunny is it in Napa in December?

There are normally 5 hours of bright sunshine each day in Napa in December - that's 52% of daylight hours.

Does it rain in Napa in December?

There are usually 10 days with some rain in Napa in December and the average monthly rainfall is 127mm.

Metric (°C / mm)  |  Imperial (°F / inches)

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Napa sunrise & sunset times for December 2021

Browse the sunrise and sunset times for Napa in December 2021. Select a month to view Napa sunrise & sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st December 2021 07:08 16:49
Thursday, 16th December 2021 07:20 16:50
Friday, 31st December 2021 07:26 16:59
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