Hollister (CA)
December
Weather in Hollister, California for December 2025
Your guide to Hollister weather in December - trends and predictions
In general, the average temperature in Hollister at the beginning of December is 20 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.3 °F by the end of December.
Hollister experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 99.5 mm.
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Temperatures
Rain 🌧️
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22
Dry days
9
Rainy days
0
Snow days
16°/7°
Temperatures
9 km/h
Avg max wind
72 %
Avg humidity
Hollister Weather December
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Temperatures trend during December in Hollister
See the weather trend as well as the moving average line
December weather in Hollister day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Patchy rain possible | 21° /8° | 0.1 mm | 5 | |
| Dec. 2 |  Sunny | 20° /7° | 0 mm | 6 | |
| Dec. 3 | Sunny | 20° /7° | 0 mm | 6 | |
| Dec. 4 | Sunny | 20° /7° | 0 mm | 6 | |
| Dec. 5 |  Cloudy | 20° /8° | 0 mm | 5 | |
| Dec. 6 | Sunny | 20° /7° | 0 mm | 6 | |
| Dec. 7 |  Overcast | 19° /6° | 0 mm | 4 | |
| Dec. 8 | Overcast | 18° /7° | 0 mm | 4 | |
| Dec. 9 | Overcast | 17° /5° | 0 mm | 4 | |
| Dec. 10 | Sunny | 19° /2° | 0 mm | 5 | |
| Dec. 11 | Overcast | 18° /5° | 0 mm | 4 | |
| Dec. 12 |  Heavy rain at times | 12° /6° | 14.2 mm | 3 | |
| Dec. 13 | Overcast | 14° /7° | 0 mm | 3 | |
| Dec. 14 |  Moderate or heavy rain shower | 12° /6° | 22.3 mm | 3 | |
| Dec. 15 | Overcast | 12° /3° | 0 mm | 3 | |
| Dec. 16 | Moderate rain at times | 13° /5° | 2 mm | 3 | |
| Dec. 17 | Overcast | 16° /6° | 0 mm | 4 | |
| Dec. 18 | Cloudy | 17° /4° | 0 mm | 4 | |
| Dec. 19 | Sunny | 20° /7° | 0 mm | 6 | |
| Dec. 20 | Cloudy | 19° /8° | 0 mm | 4 | |
| Dec. 21 | Overcast | 12° /7° | 1.4 mm | 3 | |
| Dec. 22 | Patchy rain possible | 19° /11° | 1.5 mm | 4 | |
| Dec. 23 | Overcast | 19° /9° | 0 mm | 4 | |
| Dec. 24 | Moderate or heavy rain shower | 13° /8° | 23.9 mm | 3 | |
| Dec. 25 | Overcast | 11° /5° | 0 mm | 3 | |
| Dec. 26 | Moderate rain at times | 13° /6° | 5.6 mm | 3 | |
| Dec. 27 | Moderate or heavy rain shower | 15° /10° | 23 mm | 4 | |
| Dec. 28 | Overcast | 17° /9° | 0 mm | 4 | |
| Dec. 29 | Moderate or heavy rain shower | 13° /7° | 5.5 mm | 3 | |
| Dec. 30 |  Partly cloudy | 12° /5° | 0 mm | 4 | |
| Dec. 31 | Overcast | 12° /3° | 0 mm | 3 | |
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Important Notice
Our weather forecast for Hollister 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 Hollister forecast closer to your planned date for the most up-to-date weather information.
Change Month
Hollister in December - FAQ
What are the expected maximum and minimum temperatures in Hollister during December?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Hollister during December?
Moderate rainfall is anticipated in Hollister during December, with a total of 99.5 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Hollister during December?
The average wind speed in Hollister during December is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in Hollister
Explore the daily rainfall trends and prepare for Hollisters December weather 💧
UV exposure in Hollister during December
Stay informed about UV levels for safe outdoor activities throughout the month of December ☀️
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