San Joaquin County (Stockton)
December
Weather in San Joaquin County, California for December 2026
Your guide to San Joaquin County weather in December - trends and predictions
In general, the average temperature in San Joaquin County at the beginning of December is 15.6 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 13 °C by the end of December.
San Joaquin County in December brings notable rainfall, with an average of 16 rainy days and a total precipitation of 193.7 mm.
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Temperatures
Rain 🌧️
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15
Dry days
16
Rainy days
0
Snow days
14°/6°
Temperatures
12 km/h
Avg max wind
77 %
Avg humidity
San Joaquin County Weather December
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Temperatures trend during December in San Joaquin County
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December weather in San Joaquin County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Mist | 16° /2° | 0 mm | 4 | |
| Dec. 2 |  Patchy rain possible | 16° /3° | 0 mm | 4 | |
| Dec. 3 |  Overcast | 17° /5° | 0 mm | 4 | |
| Dec. 4 | Fog | 17° /5° | 0 mm | 4 | |
| Dec. 5 | Mist | 16° /3° | 0 mm | 4 | |
| Dec. 6 | Light rain shower | 14° /4° | 1.3 mm | 3 | |
| Dec. 7 | Mist | 13° /4° | 0.3 mm | 3 | |
| Dec. 8 | Mist | 13° /3° | 0 mm | 3 | |
| Dec. 9 |  Cloudy | 12° /1° | 0 mm | 3 | |
| Dec. 10 | Overcast | 15° /0° | 0 mm | 4 | |
| Dec. 11 | Overcast | 14° /3° | 0 mm | 4 | |
| Dec. 12 |  Partly cloudy | 15° /4° | 13.5 mm | 4 | |
| Dec. 13 | Overcast | 15° /4° | 0 mm | 4 | |
| Dec. 14 | Overcast | 14° /5° | 9.2 mm | 3 | |
| Dec. 15 |  Sunny | 13° /4° | 0 mm | 4 | |
| Dec. 16 | Partly cloudy | 15° /7° | 1.8 mm | 4 | |
| Dec. 17 | Fog | 17° /9° | 0 mm | 4 | |
| Dec. 18 | Mist | 13° /8° | 2.2 mm | 3 | |
| Dec. 19 | Light rain shower | 12° /9° | 6.2 mm | 3 | |
| Dec. 20 | Light rain shower | 15° /9° | 8.6 mm | 4 | |
| Dec. 21 | Partly cloudy | 15° /9° | 35 mm | 3 | |
| Dec. 22 | Partly cloudy | 15° /8° | 31.6 mm | 3 | |
| Dec. 23 | Mist | 15° /8° | 0 mm | 3 | |
| Dec. 24 | Partly cloudy | 14° /8° | 17.8 mm | 3 | |
| Dec. 25 | Cloudy | 14° /7° | 13.7 mm | 3 | |
| Dec. 26 | Patchy rain possible | 13° /8° | 2.2 mm | 3 | |
| Dec. 27 |  Moderate or heavy rain shower | 13° /8° | 15.7 mm | 3 | |
| Dec. 28 | Sunny | 14° /6° | 0 mm | 3 | |
| Dec. 29 |  Heavy rain at times | 12° /6° | 4.5 mm | 2 | |
| Dec. 30 | Moderate or heavy rain shower | 12° /5° | 11 mm | 3 | |
| Dec. 31 | Moderate or heavy rain shower | 13° /6° | 19.1 mm | 3 | |
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Important Notice
Our weather forecast for San Joaquin 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 San Joaquin County forecast closer to your planned date for the most up-to-date weather information.
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San Joaquin County in December - FAQ
What are the expected maximum and minimum temperatures in San Joaquin County during December?
During December, expect a variety of temperatures with highs around 14° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Joaquin County during December?
Significant rainfall exceeding 193.7 mm is expected in San Joaquin County during December, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Joaquin County during December?
The average wind speed in San Joaquin County during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in San Joaquin County
Explore the daily rainfall trends and prepare for San Joaquin Countys December weather 💧
Typically, San Joaquin County has 16 rainy days in December with a total of 193.7 mm of rainfall.
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Where is San Joaquin County?Get accurate weather forecasts for San Joaquin County, located at latitude 37.958 and longitude -121.291. Stay updated with localized weather information tailored for San Joaquin County.
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