Santa Cruz County (Santa Cruz)
December
Weather in Santa Cruz County, California for December 2025
Your guide to Santa Cruz County weather in December - trends and predictions
So far, December 2025 in Santa Cruz County is slightly warmer than the historical average by 1.3 °F.
The forecast for the next days in Santa Cruz County predicts temperatures to be around 15 °F, close to the historical average.
In general, the average temperature in Santa Cruz County at the beginning of December is 15.9 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 13.1 °F by the end of December.
The climate of Santa Cruz County in December is notably wet, with an average of 11 rainy days, and a total of 194.5 mm of precipitation.
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Temperatures
Rain 🌧️
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20
Dry days
11
Rainy days
0
Snow days
14°/9°
Temperatures
13 km/h
Avg max wind
78 %
Avg humidity
Santa Cruz County Weather December
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Temperatures trend during December in Santa Cruz County
See the weather trend as well as the moving average line
December weather in Santa Cruz County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Cloudy | 17° /9° | 0 mm | 5 | |
| Dec. 2 | Cloudy | 15° /9° | 0 mm | 4 | |
| Dec. 3 |  Partly cloudy | 14° /7° | 0 mm | 4 | |
| Dec. 4 | Partly cloudy | 16° /8° | 0 mm | 5 | |
| Dec. 5 | Partly cloudy | 16° /8° | 0 mm | 5 | |
| Dec. 6 | Partly cloudy | 17° /8° | 0 mm | 5 | |
| Dec. 7 |  Overcast | 16° /7° | 0 mm | 5 | |
| Dec. 8 | Overcast | 17° /8° | 0 mm | 4 | |
| Dec. 9 | Partly cloudy | 16° /8° | 0 mm | 5 | |
| Dec. 10 |  Sunny | 19° /8° | 0 mm | 6 | |
| Dec. 11 | Overcast | 17° /10° | 0 mm | 5 | |
| Dec. 12 |  Heavy rain at times | 15° /10° | 10.6 mm | 4 | |
| Dec. 13 |  Patchy rain possible | 13° /9° | 1.2 mm | 4 | |
| Dec. 14 |  Moderate or heavy rain shower | 13° /8° | 34.1 mm | 3 | |
| Dec. 15 | Overcast | 14° /6° | 0 mm | 4 | |
| Dec. 16 | Moderate or heavy rain shower | 14° /10° | 8.4 mm | 4 | |
| Dec. 17 | Patchy rain possible | 19° /10° | 0.2 mm | 0.3 | |
| Dec. 18 | Sunny | 16° /8° | 0 mm | 0.4 | |
| Dec. 19 | Cloudy | 14° /10° | 0 mm | 0.5 | |
| Dec. 20 | Patchy rain possible | 18° /12° | 0.6 mm | 0.5 | |
| Dec. 21 | Patchy rain possible | 17° /13° | 0.8 mm | 0 | |
| Dec. 22 | Partly cloudy | 15° /12° | 0 mm | 4 | |
| Dec. 23 | Patchy rain possible | 15° /11° | 1.2 mm | 3 | |
| Dec. 24 | Patchy rain possible | 13° /9° | 0.5 mm | 3 | |
| Dec. 25 |  Moderate rain | 15° /8° | 5.2 mm | 3 | |
| Dec. 26 | Patchy rain possible | 12° /11° | 1.8 mm | 3 | |
| Dec. 27 | Overcast | 15° /10° | 0 mm | 3 | |
| Dec. 28 | Patchy rain possible | 13° /9° | 0.3 mm | 3 | |
| Dec. 29 | Partly cloudy | 13° /8° | 0 mm | 4 | |
| Dec. 30 | Patchy rain possible | 12° /10° | 4.3 mm | 3 | |
| Dec. 31 | Cloudy | 12° /2° | 0 mm | 3 | |
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Important Notice
Our weather forecast for Santa Cruz County 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 Cruz County forecast closer to your planned date for the most up-to-date weather information.
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Santa Cruz County in December - FAQ
What are the expected maximum and minimum temperatures in Santa Cruz County during December?
During December, expect a variety of temperatures with highs around 14° and lows near 9°, suitable for diverse activities and preferences.
How much rainfall should be expected in Santa Cruz County during December?
Significant rainfall exceeding 194.5 mm is expected in Santa Cruz County during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Santa Cruz County during December?
The average wind speed in Santa Cruz County during December is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Santa Cruz County
Explore the daily rainfall trends and prepare for Santa Cruz Countys December weather 💧
Typically, Santa Cruz County has 11 rainy days in December with a total of 194.5 mm of rainfall.
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