Monterey (CA)
December
Weather in Monterey, California for December 2025
Your guide to Monterey weather in December - trends and predictions
In general, the average temperature in Monterey at the beginning of December is 14.1 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 12.6 °F by the end of December.
Monterey experiences moderate rainfall in December, with an average of 10 rainy days and a total precipitation of 122.9 mm.
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Temperatures
Rain 🌧️
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21
Dry days
10
Rainy days
0
Snow days
14°/9°
Temperatures
14 km/h
Avg max wind
82 %
Avg humidity
Monterey Weather December
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Temperatures trend during December in Monterey
See the weather trend as well as the moving average line
December weather in Monterey day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Cloudy | 17° /12° | 0 mm | 4 | |
| Dec. 2 | Cloudy | 13° /8° | 0 mm | 3 | |
| Dec. 3 | Cloudy | 13° /8° | 0 mm | 3 | |
| Dec. 4 | Cloudy | 14° /10° | 0 mm | 3 | |
| Dec. 5 | Cloudy | 14° /9° | 0 mm | 3 | |
| Dec. 6 | Cloudy | 15° /8° | 0 mm | 4 | |
| Dec. 7 |  Overcast | 13° /8° | 0 mm | 3 | |
| Dec. 8 | Overcast | 16° /10° | 0 mm | 4 | |
| Dec. 9 |  Sunny | 17° /9° | 0 mm | 5 | |
| Dec. 10 | Sunny | 17° /8° | 0 mm | 5 | |
| Dec. 11 | Overcast | 16° /10° | 0 mm | 4 | |
| Dec. 12 |  Moderate or heavy rain shower | 12° /9° | 20.3 mm | 3 | |
| Dec. 13 | Overcast | 14° /9° | 0.4 mm | 3 | |
| Dec. 14 | Moderate or heavy rain shower | 13° /9° | 22 mm | 3 | |
| Dec. 15 | Cloudy | 11° /6° | 0 mm | 3 | |
| Dec. 16 | Moderate or heavy rain shower | 13° /8° | 10.5 mm | 3 | |
| Dec. 17 | Cloudy | 14° /9° | 0 mm | 3 | |
| Dec. 18 | Overcast | 16° /9° | 0 mm | 4 | |
| Dec. 19 | Sunny | 20° /11° | 0 mm | 5 | |
| Dec. 20 |  Partly cloudy | 16° /11° | 0 mm | 5 | |
| Dec. 21 |  Heavy rain at times | 14° /10° | 3.9 mm | 3 | |
| Dec. 22 |  Patchy rain possible | 16° /12° | 0.4 mm | 4 | |
| Dec. 23 | Overcast | 16° /12° | 0.1 mm | 4 | |
| Dec. 24 | Moderate or heavy rain shower | 14° /10° | 34.5 mm | 3 | |
| Dec. 25 | Partly cloudy | 11° /9° | 0 mm | 4 | |
| Dec. 26 | Moderate rain at times | 14° /9° | 4.8 mm | 3 | |
| Dec. 27 | Moderate or heavy rain shower | 14° /12° | 20.1 mm | 3 | |
| Dec. 28 | Overcast | 14° /10° | 0 mm | 3 | |
| Dec. 29 | Moderate or heavy rain shower | 13° /10° | 5.9 mm | 3 | |
| Dec. 30 | Cloudy | 11° /6° | 0 mm | 3 | |
| Dec. 31 | Partly cloudy | 11° /6° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Monterey 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 Monterey forecast closer to your planned date for the most up-to-date weather information.
Change Month
Monterey in December - FAQ
What are the expected maximum and minimum temperatures in Monterey 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 Monterey during December?
Significant rainfall exceeding 122.9 mm is expected in Monterey during December, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Monterey during December?
The average wind speed in Monterey during December is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Monterey
Explore the daily rainfall trends and prepare for Montereys December weather 💧
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