Mesa (AZ)
December
Weather in Mesa, Arizona for December 2025
Your guide to Mesa weather in December - trends and predictions
Until now, December 2025 in Mesa is slightly cooler than the historical average by -0.6 °F.
The forecast for the upcoming days in Mesa predicts a temperature of 23.1 °F, which is slightly above the historical average.
In general, the average temperature in Mesa at the beginning of December is 22 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.7 °F by the end of December.
With an average of 3 rainy days, Mesa experiences minimal rainfall in December.
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Temperatures
Rain 🌧️
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28
Dry days
3
Rainy days
0
Snow days
20°/8°
Temperatures
9 km/h
Avg max wind
39 %
Avg humidity
Mesa Weather December
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Temperatures trend during December in Mesa
See the weather trend as well as the moving average line
December weather in Mesa day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Light rain shower | 21° /9° | 1.7 mm | 6 | |
| Dec. 2 |  Sunny | 21° /6° | 0 mm | 6 | |
| Dec. 3 | Sunny | 21° /7° | 0 mm | 6 | |
| Dec. 4 |  Overcast | 21° /7° | 0 mm | 5 | |
| Dec. 5 |  Partly cloudy | 24° /7° | 0 mm | 6 | |
| Dec. 6 | Sunny | 24° /8° | 0 mm | 6 | |
| Dec. 7 | Partly cloudy | 22° /6° | 0 mm | 6 | |
| Dec. 8 | Sunny | 21° /6° | 0 mm | 5 | |
| Dec. 9 | Sunny | 21° /5° | 0 mm | 6 | |
| Dec. 10 | Sunny | 21° /4° | 0 mm | 6 | |
| Dec. 11 | Overcast | 20° /6° | 0 mm | 4 | |
| Dec. 12 | Overcast | 22° /10° | 0 mm | 5 | |
| Dec. 13 | Sunny | 20° /9° | 0 mm | 5 | |
| Dec. 14 | Sunny | 32° /9° | 0 mm | 0.6 | |
| Dec. 15 | Sunny | 26° /10° | 0 mm | 0.6 | |
| Dec. 16 | Sunny | 25° /7° | 0 mm | 0.7 | |
| Dec. 17 | Sunny | 23° /15° | 0 mm | 0.6 | |
| Dec. 18 | Sunny | 23° /15° | 0 mm | 0 | |
| Dec. 19 | Sunny | 24° /15° | 0 mm | 5 | |
| Dec. 20 | Sunny | 22° /15° | 0 mm | 5 | |
| Dec. 21 | Sunny | 23° /15° | 0 mm | 5 | |
| Dec. 22 | Sunny | 22° /16° | 0 mm | 5 | |
| Dec. 23 | Partly cloudy | 22° /17° | 0 mm | 5 | |
| Dec. 24 | Overcast | 19° /18° | 0 mm | 4 | |
| Dec. 25 | Sunny | 21° /15° | 0 mm | 5 | |
| Dec. 26 | Sunny | 20° /14° | 0 mm | 5 | |
| Dec. 27 | Partly cloudy | 21° /15° | 0 mm | 5 | |
| Dec. 28 | Partly cloudy | 17° /8° | 4.1 mm | 4 | |
| Dec. 29 | Overcast | 18° /8° | 0.1 mm | 4 | |
| Dec. 30 | Patchy rain possible | 18° /8° | 0.2 mm | 5 | |
| Dec. 31 | Overcast | 16° /8° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Mesa 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 Mesa forecast closer to your planned date for the most up-to-date weather information.
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Mesa in December - FAQ
What are the expected maximum and minimum temperatures in Mesa during December?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Mesa during December?
Expect minimal rainfall in Mesa during December, with a total of 15.6 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Mesa during December?
The average wind speed in Mesa during December is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Mesa
Explore the daily rainfall trends and prepare for Mesas December weather 💧
Typically, Mesa has 3 rainy days in December with a total of 15.6 mm of rainfall.
UV exposure in Mesa during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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