San Joaquin County (Stockton)
January
Weather in San Joaquin County, California for January 2027
Your guide to San Joaquin County weather in January - trends and predictions
In general, the average temperature in San Joaquin County at the beginning of January is 12.6 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 14.1 °C by the end of January.
San Joaquin County experiences moderate rainfall in January, with an average of 8 rainy days and a total precipitation of 112.8 mm.
Is January a good time to visit San Joaquin County? check out the best time to travel to San Joaquin County page.
✨ Is January a good time to visit San Joaquin County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
23
Dry days
8
Rainy days
0
Snow days
13°/5°
Temperatures
14 km/h
Avg max wind
79 %
Avg humidity
San Joaquin County Weather January
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Temperatures trend during January in San Joaquin County
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January weather in San Joaquin County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 |  Moderate rain | 13° /6° | 10.4 mm | 2.2 | |
| Jan. 2 |  Patchy rain possible | 13° /7° | 2.3 mm | 2 | |
| Jan. 3 | Moderate rain | 13° /8° | 12.2 mm | 2 | |
| Jan. 4 | Moderate rain | 12° /7° | 16.2 mm | 2 | |
| Jan. 5 |  Light rain | 12° /7° | 8 mm | 2 | |
| Jan. 6 | Light rain | 13° /5° | 2.8 mm | 2.3 | |
| Jan. 7 | Light rain | 13° /7° | 3 mm | 2.3 | |
| Jan. 8 | Light rain | 13° /6° | 4.3 mm | 2.3 | |
| Jan. 9 |  Moderate or heavy rain shower | 13° /4° | 7.9 mm | 2.3 | |
| Jan. 10 | Light rain | 12° /4° | 4.9 mm | 2.3 | |
| Jan. 11 | Patchy rain possible | 12° /4° | 2.1 mm | 2.4 | |
| Jan. 12 |  Sunny | 13° /3° | 0 mm | 2.4 | |
| Jan. 13 | Light rain | 12° /5° | 3.5 mm | 2 | |
| Jan. 14 | Moderate or heavy rain shower | 14° /4° | 7.5 mm | 2.4 | |
| Jan. 15 | Light rain | 14° /4° | 2.9 mm | 2.5 | |
| Jan. 16 | Light rain | 14° /4° | 6.8 mm | 2.5 | |
| Jan. 17 |  Mist | 14° /5° | 0.7 mm | 2.5 | |
| Jan. 18 |  Overcast | 11° /5° | 0.5 mm | 2.6 | |
| Jan. 19 | Patchy rain possible | 11° /5° | 0.9 mm | 2 | |
| Jan. 20 | Patchy rain possible | 12° /5° | 2.2 mm | 2.6 | |
| Jan. 21 |  Cloudy | 14° /5° | 0.5 mm | 2.7 | |
| Jan. 22 | Light rain | 14° /6° | 6.8 mm | 2.7 | |
| Jan. 23 | Sunny | 14° /5° | 0 mm | 2.8 | |
| Jan. 24 |  Partly cloudy | 14° /5° | 0.4 mm | 2.8 | |
| Jan. 25 | Sunny | 14° /4° | 0 mm | 2.8 | |
| Jan. 26 | Light rain | 15° /5° | 2.8 mm | 2.9 | |
| Jan. 27 | Sunny | 15° /4° | 0 mm | 2.9 | |
| Jan. 28 | Sunny | 16° /5° | 0 mm | 3 | |
| Jan. 29 | Mist | 12° /6° | 0.3 mm | 3 | |
| Jan. 30 | Sunny | 13° /6° | 0 mm | 3 | |
| Jan. 31 | Light rain | 13° /6° | 2.7 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for San Joaquin County in January 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 January - FAQ
What are the expected maximum and minimum temperatures in San Joaquin County during January?
During January, expect a variety of temperatures with highs around 13° and lows near 5°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Joaquin County during January?
Significant rainfall exceeding 112.8 mm is expected in San Joaquin County during January, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Joaquin County during January?
The average wind speed in San Joaquin County during January is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in San Joaquin County
Explore the daily rainfall trends and prepare for San Joaquin Countys January weather 💧
Typically, San Joaquin County has 8 rainy days in January with a total of 112.8 mm of rainfall.
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