Riverside (CA)
January
Weather in Riverside, California for January 2026
Your guide to Riverside weather in January - trends and predictions
So far, January 2026 in Riverside is slightly warmer than the historical average by 1.2 °F.
The forecast for the next days in Riverside predicts a temperature of 24.4 °F, which is cooler than the historical average.
In general, the average temperature in Riverside at the beginning of January is 16 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.1 °F by the end of January.
Riverside in January brings notable rainfall, with an average of 16 rainy days and a total precipitation of 94.7 mm.
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Temperatures
Rain 🌧️
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15
Dry days
16
Rainy days
0
Snow days
16°/7°
Temperatures
11 km/h
Avg max wind
46 %
Avg humidity
Riverside Weather January
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Temperatures trend during January in Riverside
See the weather trend as well as the moving average line
January weather in Riverside day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 |  Moderate rain at times | 17° /9° | 50.3 mm | 3 | |
| Jan. 2 |  Patchy rain possible | 17° /9° | 1.1 mm | 4 | |
| Jan. 3 | Moderate rain at times | 16° /9° | 3.4 mm | 3 | |
| Jan. 4 | Patchy rain possible | 15° /8° | 11.4 mm | 3 | |
| Jan. 5 |  Sunny | 15° /8° | 13.2 mm | 4 | |
| Jan. 6 | Sunny | 17° /7° | 0 mm | 4 | |
| Jan. 7 |  Overcast | 15° /7° | 0.4 mm | 3 | |
| Jan. 8 |  Partly cloudy | 15° /7° | 0 mm | 4 | |
| Jan. 9 | Sunny | 16° /6° | 2.2 mm | 4 | |
| Jan. 10 | Sunny | 16° /6° | 11.9 mm | 3 | |
| Jan. 11 | Sunny | 17° /6° | 0.1 mm | 4 | |
| Jan. 12 | Sunny | 18° /6° | 0 mm | 4 | |
| Jan. 13 | Sunny | 18° /6° | 0 mm | 4 | |
| Jan. 14 | Sunny | 18° /8° | 8.9 mm | 4 | |
| Jan. 15 | Sunny | 18° /8° | 2.6 mm | 3 | |
| Jan. 16 | Sunny | 19° /8° | 5.8 mm | 4 | |
| Jan. 17 | Partly cloudy | 16° /6° | 0.1 mm | 3 | |
| Jan. 18 | Sunny | 16° /6° | 0 mm | 4 | |
| Jan. 19 | Sunny | 19° /7° | 0.2 mm | 3 | |
| Jan. 20 | Sunny | 18° /7° | 1.4 mm | 3 | |
| Jan. 21 | Sunny | 16° /6° | 2 mm | 3 | |
| Jan. 22 | Sunny | 16° /8° | 4.6 mm | 4 | |
| Jan. 23 | Sunny | 16° /8° | 0 mm | 4 | |
| Jan. 24 | Sunny | 18° /6° | 0 mm | 4 | |
| Jan. 25 | Overcast | 17° /5° | 0 mm | 3 | |
| Jan. 26 | Sunny | 17° /7° | 0.8 mm | 4 | |
| Jan. 27 | Sunny | 19° /7° | 9 mm | 4 | |
| Jan. 28 | Sunny | 18° /8° | 0 mm | 4 | |
| Jan. 29 | Sunny | 28° /12° | 0 mm | 0.8 | |
| Jan. 30 | Sunny | 27° /8° | 0 mm | 0.9 | |
| Jan. 31 | Sunny | 29° /9° | 0 mm | 0.9 | |
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Important Notice
Our weather forecast for Riverside 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 forecast closer to your planned date for the most up-to-date weather information.
Change Month
Riverside in January - FAQ
What are the expected maximum and minimum temperatures in Riverside during January?
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 Riverside during January?
Moderate rainfall is anticipated in Riverside during January, with a total of 94.7 mm spread over approximately 16 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Riverside during January?
The average wind speed in Riverside during January is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Riverside
Explore the daily rainfall trends and prepare for Riversides January weather 💧
Typically, Riverside has 16 rainy days in January with a total of 94.7 mm of rainfall.
UV exposure in Riverside during January
Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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Where is Riverside?Get accurate weather forecasts for Riverside, located at latitude 33.953 and longitude -117.396. Stay updated with localized weather information tailored for Riverside.
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