Sunnyvale
January
Weather in Sunnyvale for January 2026
Your guide to Sunnyvale weather in January - trends and predictions
In general, the average temperature in Sunnyvale at the beginning of January is 13.7 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 14.9 °F by the end of January.
The climate of Sunnyvale in January is notably wet, with an average of 12 rainy days, and a total of 145.9 mm of precipitation.
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Temperatures
Rain 🌧️
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19
Dry days
12
Rainy days
0
Snow days
14°/8°
Temperatures
11 km/h
Avg max wind
75 %
Avg humidity
Sunnyvale Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  14° | 2  17° | 3  12° | ||||
| 4 12° | 5  15° | 6 13° | 7  13° | 8 13° | 9 16° | 10 14° |
| 11 12° | 12 13° | 13  13° | 14 16° | 15 16° | 16 17° | 17  14° |
| 18 14° | 19  12° | 20 14° | 21 15° | 22 16° | 23 18° | 24 14° |
| 25 14° | 26 14° | 27 17° | 28 18° | 29 14° | 30 15° | 31  12° |
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Temperatures trend during January in Sunnyvale
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 | Cloudy | 14° /6° | 0 mm | 4 | |
| Jan. 2 | Partly cloudy | 17° /8° | 1.1 mm | 5 | |
| Jan. 3 | Light rain shower | 12° /9° | 13.4 mm | 3 | |
| Jan. 4 | Partly cloudy | 12° /6° | 0 mm | 4 | |
| Jan. 5 | Overcast | 15° /6° | 0 mm | 3 | |
| Jan. 6 | Light rain shower | 13° /7° | 5.3 mm | 3 | |
| Jan. 7 | Sunny | 13° /5° | 0 mm | 4 | |
| Jan. 8 | Cloudy | 13° /5° | 0 mm | 4 | |
| Jan. 9 | Patchy rain possible | 16° /5° | 0.1 mm | 4 | |
| Jan. 10 | Light rain shower | 14° /5° | 1.9 mm | 4 | |
| Jan. 11 | Partly cloudy | 12° /4° | 0.1 mm | 4 | |
| Jan. 12 | Partly cloudy | 13° /4° | 0 mm | 4 | |
| Jan. 13 | Moderate rain | 13° /4° | 4.2 mm | 4 | |
| Jan. 14 | Patchy rain possible | 16° /6° | 0.6 mm | 4 | |
| Jan. 15 | Partly cloudy | 16° /6° | 0 mm | 5 | |
| Jan. 16 | Patchy rain possible | 17° /6° | 1.7 mm | 5 | |
| Jan. 17 | Mist | 14° /6° | 0.2 mm | 4 | |
| Jan. 18 | Partly cloudy | 14° /6° | 0 mm | 4 | |
| Jan. 19 | Light rain | 12° /7° | 5.4 mm | 3 | |
| Jan. 20 | Light rain shower | 14° /7° | 2.6 mm | 3 | |
| Jan. 21 | Patchy rain possible | 15° /7° | 0.1 mm | 5 | |
| Jan. 22 | Light rain shower | 16° /6° | 16.6 mm | 5 | |
| Jan. 23 | Patchy rain possible | 18° /6° | 0.1 mm | 5 | |
| Jan. 24 | Light rain | 14° /8° | 1.6 mm | 4 | |
| Jan. 25 | Mist | 14° /5° | 0 mm | 4 | |
| Jan. 26 | Cloudy | 14° /6° | 1.3 mm | 4 | |
| Jan. 27 | Partly cloudy | 17° /6° | 0 mm | 5 | |
| Jan. 28 | Partly cloudy | 18° /6° | 0 mm | 6 | |
| Jan. 29 | Partly cloudy | 14° /7° | 0 mm | 4 | |
| Jan. 30 | Overcast | 15° /9° | 0 mm | 4 | |
| Jan. 31 | Heavy rain | 12° /9° | 26.8 mm | 3 | |
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Important Notice
Our weather forecast for Sunnyvale 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 Sunnyvale forecast closer to your planned date for the most up-to-date weather information.
Sunnyvale in January - FAQ
What are the expected maximum and minimum temperatures in Sunnyvale during January?
During January, expect a variety of temperatures with highs around 14° and lows near 8°, suitable for diverse activities and preferences.
How much rainfall should be expected in Sunnyvale during January?
Significant rainfall exceeding 145.9 mm is expected in Sunnyvale during January, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sunnyvale during January?
The average wind speed in Sunnyvale during January is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Sunnyvale
Explore the daily rainfall trends and prepare for Sunnyvales January weather 💧
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