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Weather in Phoenix, Arizona for December 2025

Your guide to Phoenix weather in December - trends and predictions

    Temperatures

  • Until now, December 2025 in Phoenix is slightly cooler than the historical average by -0.6 °F.

  • The forecast for the upcoming days in Phoenix predicts a temperature of 23.1 °F, which is slightly above the historical average.

  • In general, the average temperature in Phoenix at the beginning of December is 22.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.4 °F by the end of December.

    • Rain 🌧️

  • Phoenix experiences moderate rainfall in December, with an average of 10 rainy days and a total precipitation of 24.7 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
21
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/9°
Temperatures
Average wind speed
10 km/h
Avg max wind
Average humidity
38 %
Avg humidity

Phoenix Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
23°
2
Sunny
23°
3
Sunny
22°
4
Sunny
22°
5
Sunny
23°
6
Sunny
23°
7
Sunny
22°
8
Sunny
21°
9
Sunny
21°
10
Sunny
20°
11
Overcast
20°
12
Sunny
20°
13
Overcast
19°
14
Sunny
32°
15
Sunny
26°
16
Sunny
25°
17
Sunny
23°
18
Sunny
23°
19
Sunny
24°
20
Sunny
22°
21
Sunny
23°
22
Sunny
22°
23
Partly cloudy
22°
24
Cloudy
20°
25
Sunny
21°
26
Sunny
20°
27
Partly cloudy
21°
28
Partly cloudy
16°
29
Overcast
17°
30
Sunny
18°
31
Overcast
16°

Temperatures trend during December in Phoenix

See the weather trend as well as the moving average line

December weather in Phoenix day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
Dec. 1 Sunny
Sunny
 23° /9° 1.1 mm 6
Dec. 2 Sunny
Sunny
 23° /8° 0 mm 6
Dec. 3 Sunny
Sunny
 22° /9° 4.7 mm 6
Dec. 4 Sunny
Sunny
 22° /10° 1.2 mm 6
Dec. 5 Sunny
Sunny
 23° /10° 0 mm 6
Dec. 6 Sunny
Sunny
 23° /10° 0.1 mm 6
Dec. 7 Sunny
Sunny
 22° /9° 0 mm 5
Dec. 8 Sunny
Sunny
 21° /7° 0 mm 5
Dec. 9 Sunny
Sunny
 21° /7° 0.8 mm 5
Dec. 10 Sunny
Sunny
 20° /6° 0.8 mm 5
Dec. 11 Overcast
Overcast
 20° /7° 0 mm 5
Dec. 12 Sunny
Sunny
 20° /9° 1.3 mm 5
Dec. 13 Overcast
Overcast
 19° /8° 0.1 mm 5
Dec. 14 Sunny
Sunny
 32° /9° 0 mm 0.6
Dec. 15 Sunny
Sunny
 26° /10° 0 mm 0.6
Dec. 16 Sunny
Sunny
 25° /8° 0 mm 0.6
Dec. 17 Sunny
Sunny
 23° /16° 0 mm 0.6
Dec. 18 Sunny
Sunny
 23° /16° 0 mm 0
Dec. 19 Sunny
Sunny
 24° /16° 0 mm 5
Dec. 20 Sunny
Sunny
 22° /16° 0 mm 5
Dec. 21 Sunny
Sunny
 23° /16° 0 mm 5
Dec. 22 Sunny
Sunny
 22° /17° 0 mm 5
Dec. 23 Partly cloudy
Partly cloudy
 22° /18° 0 mm 5
Dec. 24 Cloudy
Cloudy
 20° /19° 0 mm 4
Dec. 25 Sunny
Sunny
 21° /16° 0 mm 5
Dec. 26 Sunny
Sunny
 20° /15° 0 mm 5
Dec. 27 Partly cloudy
Partly cloudy
 21° /16° 0 mm 5
Dec. 28 Partly cloudy
Partly cloudy
 16° /9° 3 mm 4
Dec. 29 Overcast
Overcast
 17° /8° 0.3 mm 4
Dec. 30 Sunny
Sunny
 18° /8° 0.2 mm 5
Dec. 31 Overcast
Overcast
 16° /8° 1.8 mm 4
Next
Important Notice
Our weather forecast for Phoenix in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Phoenix forecast closer to your planned date for the most up-to-date weather information.
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Phoenix in December - FAQ

What are the expected maximum and minimum temperatures in Phoenix during December?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Phoenix during December?
In December, Phoenix can expect light to moderate rainfall, totaling 24.7 mm across approximately 10 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Phoenix during December?
The average wind speed in Phoenix during December is 10 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Phoenix

Explore the daily rainfall trends and prepare for Phoenixs December weather 💧
Typically, Phoenix has 10 rainy days in December with a total of 24.7 mm of rainfall.

UV exposure in Phoenix during December

Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️

Quick links

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Location coordinates Where is Phoenix?

Get accurate weather forecasts for Phoenix, located at latitude 33.448 and longitude -112.074. Stay updated with localized weather information tailored for Phoenix.

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