Weather in Santa Clara County, California for January 2026
Beach Hazards Statement - See hour by hour.
So far, January 2026 in Santa Clara County is slightly warmer than the historical average by 0.9 °F.
Expect cooler weather in the next days in Santa Clara County with the forecast suggesting a temperature of 18.7 °F, lower than the historical average.
In general, the average temperature in Santa Clara County at the beginning of January is 13.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 18 °F by the end of January.
Santa Clara County in January brings notable rainfall, with an average of 19 rainy days and a total precipitation of 152.5 mm.
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Santa Clara County Weather January
Temperatures trend during January in Santa Clara County
January weather in Santa Clara County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 |  Cloudy | 14° /7° | 1.4 mm | 3 | |
| Jan. 2 |  Heavy rain at times | 14° /7° | 2.7 mm | 3 | |
| Jan. 3 |  Patchy rain possible | 13° /8° | 11.1 mm | 2 | |
| Jan. 4 |  Moderate or heavy rain shower | 13° /7° | 27.2 mm | 3 | |
| Jan. 5 | Moderate or heavy rain shower | 14° /6° | 6 mm | 3 | |
| Jan. 6 | Light rain shower | 14° /5° | 3.2 mm | 3 | |
| Jan. 7 |  Sunny | 13° /6° | 4.4 mm | 3 | |
| Jan. 8 |  Partly cloudy | 13° /5° | 5 mm | 3 | |
| Jan. 9 | Sunny | 15° /5° | 10.5 mm | 3 | |
| Jan. 10 | Moderate or heavy rain shower | 14° /5° | 8.5 mm | 3 | |
| Jan. 11 | Moderate or heavy rain shower | 14° /5° | 7 mm | 3 | |
| Jan. 12 | Sunny | 14° /4° | 0 mm | 4 | |
| Jan. 13 | Moderate or heavy rain shower | 15° /6° | 7.7 mm | 3 | |
| Jan. 14 | Sunny | 16° /7° | 10.5 mm | 3 | |
| Jan. 15 | Sunny | 17° /7° | 4.6 mm | 4 | |
| Jan. 16 | Patchy rain possible | 16° /7° | 4.6 mm | 3 | |
| Jan. 17 |  Overcast | 15° /6° | 0.1 mm | 3 | |
| Jan. 18 | Overcast | 13° /5° | 0.1 mm | 4 | |
| Jan. 19 |  Mist | 14° /5° | 3.2 mm | 3 | |
| Jan. 20 | Sunny | 15° /5° | 1.2 mm | 3 | |
| Jan. 21 | Sunny | 15° /6° | 0 mm | 3 | |
| Jan. 22 | Sunny | 15° /6° | 7.1 mm | 3 | |
| Jan. 23 | Sunny | 15° /6° | 0 mm | 4 | |
| Jan. 24 | Sunny | 15° /5° | 0.7 mm | 3 | |
| Jan. 25 | Mist | 15° /4° | 0 mm | 3 | |
| Jan. 26 | Sunny | 16° /5° | 0.4 mm | 3 | |
| Jan. 27 | Sunny | 16° /5° | 0 mm | 4 | |
| Jan. 28 | Sunny | 20° /8° | 0 mm | 0.6 | |
| Jan. 29 | Sunny | 18° /3° | 0 mm | 0.6 | |
| Jan. 30 | Cloudy | 20° /9° | 0 mm | 0.7 | |
| Jan. 31 | Overcast | 21° /10° | 0 mm | 0.6 | |
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Santa Clara County in January - FAQ
What are the expected maximum and minimum temperatures in Santa Clara County during January?
How much rainfall should be expected in Santa Clara County during January?
What are the typical wind conditions in Santa Clara County during January?
January rainfall patterns in Santa Clara County
UV exposure in Santa Clara County during January
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Where is Santa Clara County?Get accurate weather forecasts for Santa Clara County, located at latitude 37.339 and longitude -121.895. Stay updated with localized weather information tailored for Santa Clara County.