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Weather in Santa Ana, California for December 2025

Your guide to Santa Ana weather in December - trends and predictions

    Temperatures

  • Until now, December 2025 in Santa Ana has been nearly identical to the historical average, with a temperature of 21.1 °F (showing only a slight deviation of -0.2 °F).

  • The forecast for the next days in Santa Ana predicts temperatures to be around 22 °F, close to the historical average.

  • In general, the average temperature in Santa Ana at the beginning of December is 20.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.4 °F by the end of December.

    • Rain 🌧️

  • Santa Ana experiences moderate rainfall in December, with an average of 7 rainy days and a total precipitation of 32.4 mm.

    • More

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

Average dry days
24
Dry days
Average rainy days
7
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/10°
Temperatures
Average wind speed
11 km/h
Avg max wind
Average humidity
52 %
Avg humidity

Santa Ana Weather December

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

Temperatures trend during December in Santa Ana

See the weather trend as well as the moving average line

December weather in Santa Ana day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
Dec. 1 Overcast
Overcast
 20° /9° 0 mm 5
Dec. 2 Sunny
Sunny
 18° /7° 0 mm 5
Dec. 3 Sunny
Sunny
 19° /9° 0 mm 5
Dec. 4 Overcast
Overcast
 21° /8° 0 mm 6
Dec. 5 Sunny
Sunny
 23° /9° 0 mm 6
Dec. 6 Sunny
Sunny
 22° /10° 0 mm 6
Dec. 7 Cloudy
Cloudy
 21° /9° 0 mm 5
Dec. 8 Partly cloudy
Partly cloudy
 22° /8° 0 mm 6
Dec. 9 Partly cloudy
Partly cloudy
 23° /8° 0 mm 6
Dec. 10 Sunny
Sunny
 24° /9° 0 mm 6
Dec. 11 Overcast
Overcast
 21° /10° 0 mm 5
Dec. 12 Sunny
Sunny
 17° /10° 0 mm 4
Dec. 13 Partly cloudy
Partly cloudy
 20° /12° 0 mm 0.6
Dec. 14 Partly cloudy
Partly cloudy
 22° /13° 0 mm 0.6
Dec. 15 Sunny
Sunny
 28° /11° 0 mm 0.6
Dec. 16 Sunny
Sunny
 25° /18° 0 mm 0.7
Dec. 17 Sunny
Sunny
 24° /17° 0 mm 0
Dec. 18 Sunny
Sunny
 23° /16° 0 mm 5
Dec. 19 Partly cloudy
Partly cloudy
 21° /17° 0 mm 5
Dec. 20 Sunny
Sunny
 21° /15° 0 mm 5
Dec. 21 Sunny
Sunny
 18° /14° 0 mm 5
Dec. 22 Sunny
Sunny
 21° /12° 0 mm 5
Dec. 23 Sunny
Sunny
 23° /15° 0 mm 5
Dec. 24 Partly cloudy
Partly cloudy
 21° /16° 0 mm 5
Dec. 25 Moderate rain
Moderate rain
 17° /15° 6 mm 4
Dec. 26 Overcast
Overcast
 20° /11° 0 mm 5
Dec. 27 Patchy rain possible
Patchy rain possible
 16° /11° 1.5 mm 4
Dec. 28 Overcast
Overcast
 19° /10° 0.7 mm 4
Dec. 29 Patchy rain possible
Patchy rain possible
 16° /11° 0.1 mm 4
Dec. 30 Patchy rain possible
Patchy rain possible
 17° /10° 4.5 mm 4
Dec. 31 Moderate rain at times
Moderate rain at times
 17° /10° 8 mm 4
Next
Important Notice
Our weather forecast for Santa Ana 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 Santa Ana forecast closer to your planned date for the most up-to-date weather information.
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Santa Ana in December - FAQ

What are the expected maximum and minimum temperatures in Santa Ana during December?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Santa Ana during December?
In December, Santa Ana can expect light to moderate rainfall, totaling 32.4 mm across approximately 7 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Santa Ana during December?
The average wind speed in Santa Ana during December is 11 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Santa Ana

Explore the daily rainfall trends and prepare for Santa Anas December weather 💧
Typically, Santa Ana has 7 rainy days in December with a total of 32.4 mm of rainfall.

UV exposure in Santa Ana 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 Santa Ana?

Get accurate weather forecasts for Santa Ana, located at latitude 33.746 and longitude -117.868. Stay updated with localized weather information tailored for Santa Ana.

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