Phoenix weather in December 2025

Expect daytime maximum temperatures of 66°F in Phoenix, Arizona in December based on long-term weather averages. There are 8 hours of sunshine per day on average.

  • 66°F maximum daytime temperature in December in Phoenix66
    66°F max day temperature
  • 8 hours of sunshine per day
  • 4 days with some rainfall in December in Phoenix4
    4 days with some rainfall
  • 39°F minimum night-time temperature in December in Phoenix39
    39°F min night temperature
  • 10 hours of daylight per day in December in Phoenix10
    10 hours of daylight per day
  • No heat & humidity in December in Phoenix0
    No heat & humidity
  • 1.0 inches monthly rainfall in December in Phoenix1.0
    1.0 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in December in Phoenix3
    3 (Moderate) UV index

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The December weather guide for Arizona (Phoenix) 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.

Metric (°C)  |  Imperial (°F)

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More about Arizona

How hot is it in Phoenix in December?

Daytime temperatures usually reach 66°F in Phoenix in December, falling to 39°F at night.

How sunny is it in Phoenix in December?

There are normally 8 hours of bright sunshine each day in Phoenix in December - that's 79% of daylight hours.

Does it ever rain in Phoenix in December?

There are usually 4 days with some rain in Phoenix in December and the average monthly rainfall is 1.0 inches.

Phoenix December sunrise & sunset times

Browse the sunrise and sunset times for Phoenix in December 2025. Select a month to view Phoenix sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:15 17:20
Tuesday, 16th December 2025 07:26 17:23
Wednesday, 31st December 2025 07:32 17:31

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