Riverside County (Riverside)
January
Weather in Riverside County, California for January 2027
Your guide to Riverside County weather in January - trends and predictions
In general, the average temperature in Riverside County at the beginning of January is 15.7 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 17.8 °C by the end of January.
Riverside County experiences moderate rainfall in January, with an average of 6 rainy days and a total precipitation of 133.1 mm.
Is January a good time to visit Riverside County? check out the best time to travel to Riverside County page.
✨ Is January a good time to visit Riverside County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
25
Dry days
6
Rainy days
0
Snow days
17°/8°
Temperatures
11 km/h
Avg max wind
48 %
Avg humidity
Riverside County Weather January
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Temperatures trend during January in Riverside County
See the weather trend as well as the moving average line
January weather in Riverside County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 |  Heavy rain | 16° /9° | 50.3 mm | 2.9 | |
| Jan. 2 |  Patchy rain possible | 17° /10° | 1.1 mm | 2.9 | |
| Jan. 3 |  Light rain | 15° /10° | 3.4 mm | 2.9 | |
| Jan. 4 |  Moderate rain | 15° /8° | 11.4 mm | 2.9 | |
| Jan. 5 | Moderate rain | 15° /8° | 13.2 mm | 2.9 | |
| Jan. 6 |  Sunny | 17° /8° | 0 mm | 3 | |
| Jan. 7 |  Overcast | 15° /8° | 0.4 mm | 3 | |
| Jan. 8 |  Partly cloudy | 15° /7° | 0 mm | 3 | |
| Jan. 9 | Patchy rain possible | 16° /6° | 2.2 mm | 3 | |
| Jan. 10 | Moderate rain | 16° /6° | 11.9 mm | 3 | |
| Jan. 11 | Sunny | 17° /6° | 0.1 mm | 3.1 | |
| Jan. 12 | Sunny | 17° /6° | 0 mm | 3.1 | |
| Jan. 13 | Sunny | 17° /7° | 0 mm | 3.2 | |
| Jan. 14 | Light rain | 17° /8° | 8.9 mm | 3.2 | |
| Jan. 15 | Light rain | 18° /8° | 2.6 mm | 3 | |
| Jan. 16 | Light rain | 18° /8° | 5.8 mm | 3.2 | |
| Jan. 17 | Partly cloudy | 16° /7° | 0.1 mm | 3 | |
| Jan. 18 | Sunny | 19° /7° | 0 mm | 3.3 | |
| Jan. 19 | Sunny | 19° /7° | 0.2 mm | 3 | |
| Jan. 20 | Patchy rain possible | 18° /7° | 1.4 mm | 3 | |
| Jan. 21 | Patchy rain possible | 16° /6° | 2 mm | 3 | |
| Jan. 22 | Light rain | 16° /9° | 4.6 mm | 3.5 | |
| Jan. 23 | Sunny | 16° /9° | 0 mm | 3.5 | |
| Jan. 24 | Sunny | 17° /7° | 0 mm | 3.6 | |
| Jan. 25 | Overcast | 17° /6° | 0 mm | 3 | |
| Jan. 26 | Sunny | 17° /8° | 0.8 mm | 3.7 | |
| Jan. 27 | Light rain | 18° /7° | 9 mm | 3.7 | |
| Jan. 28 | Sunny | 18° /9° | 0 mm | 3.8 | |
| Jan. 29 | Patchy rain possible | 17° /8° | 1.1 mm | 3.8 | |
| Jan. 30 | Light rain | 18° /9° | 2.8 mm | 3 | |
| Jan. 31 | Sunny | 20° /8° | 0 mm | 3.9 | |
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Important Notice
Our weather forecast for Riverside 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 Riverside County forecast closer to your planned date for the most up-to-date weather information.
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Riverside County in January - FAQ
What are the expected maximum and minimum temperatures in Riverside County during January?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Riverside County during January?
Significant rainfall exceeding 133.1 mm is expected in Riverside County during January, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Riverside County during January?
The average wind speed in Riverside County during January is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Riverside County
Explore the daily rainfall trends and prepare for Riverside Countys January weather 💧
Typically, Riverside County has 6 rainy days in January with a total of 133.1 mm of rainfall.
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