Santa Monica (CA)
December
Weather in Santa Monica, California for December 2026
Your guide to Santa Monica weather in December - trends and predictions
In general, the average temperature in Santa Monica at the beginning of December is 18.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.1 °F by the end of December.
With an average of 5 rainy days, Santa Monica experiences minimal rainfall in December.
Is December a good time to visit Santa Monica? check out the best time to travel to Santa Monica page.
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Temperatures
Rain 🌧️
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26
Dry days
5
Rainy days
0
Snow days
18°/11°
Temperatures
14 km/h
Avg max wind
75 %
Avg humidity
Santa Monica Weather December
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Temperatures trend during December in Santa Monica
See the weather trend as well as the moving average line
December weather in Santa Monica day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Partly cloudy | 21° /9° | 0 mm | 1 | |
| Dec. 2 | Partly cloudy | 18° /8° | 0 mm | 1 | |
| Dec. 3 |  Fog | 17° /10° | 0 mm | 1 | |
| Dec. 4 |  Sunny | 20° /8° | 0 mm | 1 | |
| Dec. 5 | Sunny | 19° /8° | 0 mm | 1 | |
| Dec. 6 | Partly cloudy | 16° /12° | 0 mm | 1 | |
| Dec. 7 | Fog | 17° /9° | 0 mm | 1 | |
| Dec. 8 | Mist | 23° /9° | 0 mm | 1 | |
| Dec. 9 | Sunny | 24° /12° | 0 mm | 1 | |
| Dec. 10 | Sunny | 25° /14° | 0 mm | 1 | |
| Dec. 11 | Partly cloudy | 18° /13° | 0 mm | 1 | |
| Dec. 12 | Partly cloudy | 17° /11° | 0 mm | 1 | |
| Dec. 13 |  Overcast | 17° /12° | 0 mm | 0 | |
| Dec. 14 | Partly cloudy | 19° /12° | 0 mm | 1 | |
| Dec. 15 |  Cloudy | 23° /12° | 0 mm | 1 | |
| Dec. 16 | Partly cloudy | 20° /14° | 0 mm | 1 | |
| Dec. 17 | Partly cloudy | 19° /12° | 0 mm | 1 | |
| Dec. 18 | Sunny | 23° /15° | 0 mm | 1 | |
| Dec. 19 | Partly cloudy | 18° /13° | 0 mm | 1 | |
| Dec. 20 | Mist | 16° /11° | 0 mm | 1 | |
| Dec. 21 | Fog | 17° /12° | 0 mm | 0 | |
| Dec. 22 | Partly cloudy | 18° /12° | 0 mm | 1 | |
| Dec. 23 | Mist | 15° /13° | 2.2 mm | 0 | |
| Dec. 24 |  Light rain shower | 16° /14° | 223.2 mm | 0 | |
| Dec. 25 |  Moderate or heavy rain shower | 15° /14° | 17.4 mm | 0 | |
| Dec. 26 | Moderate or heavy rain shower | 15° /13° | 65.5 mm | 0 | |
| Dec. 27 | Fog | 12° /8° | 0 mm | 0 | |
| Dec. 28 | Fog | 16° /5° | 0 mm | 1 | |
| Dec. 29 | Partly cloudy | 16° /7° | 0 mm | 1 | |
| Dec. 30 | Overcast | 16° /9° | 0 mm | 1 | |
| Dec. 31 | Moderate or heavy rain shower | 16° /12° | 38.1 mm | 0 | |
| Next | |||||
Important Notice
Our weather forecast for Santa Monica 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 Monica forecast closer to your planned date for the most up-to-date weather information.
Change Month
Santa Monica in December - FAQ
What are the expected maximum and minimum temperatures in Santa Monica during December?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Santa Monica during December?
Significant rainfall exceeding 346.4 mm is expected in Santa Monica during December, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Santa Monica during December?
The average wind speed in Santa Monica during December is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Santa Monica
Explore the daily rainfall trends and prepare for Santa Monicas December weather 💧
Typically, Santa Monica has 5 rainy days in December with a total of 346.4 mm of rainfall.
UV exposure in Santa Monica during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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