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Sunnyvale (CA)
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Sunnyvale (CA)
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United States weather

Weather in Sunnyvale, California for January 2027

Your guide to Sunnyvale weather in January - trends and predictions

    Temperatures

  • In general, the average temperature in Sunnyvale at the beginning of January is 13.4 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 15.6 °C by the end of January.

    • Rain 🌧️

  • Sunnyvale experiences moderate rainfall in January, with an average of 6 rainy days and a total precipitation of 84.8 mm.

    • More

  • Is January a good time to visit Sunnyvale? check out the best time to travel to Sunnyvale page.

  • ✨ Is January a good time to visit Sunnyvale? – Ask the AI Weatherman

Average dry days
25
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/6°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Sunnyvale Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
14°
2
Partly cloudy
16°
3
Moderate rain
13°
4
Moderate rain
12°
5
Overcast
14°
6
Light rain
13°
7
Sunny
12°
8
Cloudy
12°
9
Patchy rain possible
15°
10
Light rain shower
14°
11
Partly cloudy
13°
12
Sunny
14°
13
Light rain
15°
14
Sunny
17°
15
Sunny
18°
16
Patchy rain possible
18°
17
Mist
15°
18
Mist
16°
19
Light rain
14°
20
Light rain shower
15°
21
Patchy rain possible
14°
22
Moderate rain
15°
23
Patchy rain possible
15°
24
Light rain
14°
25
Mist
14°
26
Cloudy
16°
27
Partly cloudy
16°
28
Partly cloudy
17°
29
Partly cloudy
15°
30
Overcast
16°
31
Heavy rain
15°

Temperatures trend during January in Sunnyvale

See the weather trend as well as the moving average line

January weather in Sunnyvale day by day

Click on a date for more information
December February
Date Weather Temperatures Rain UV More
Jan. 1 Cloudy
Cloudy
 14° /8° 0 mm 2
Jan. 2 Partly cloudy
Partly cloudy
 16° /9° 0.7 mm 2.3
Jan. 3 Moderate rain
Moderate rain
 13° /10° 14 mm 2
Jan. 4 Moderate rain
Moderate rain
 12° /7° 24.4 mm 2
Jan. 5 Overcast
Overcast
 14° /7° 0 mm 2
Jan. 6 Light rain
Light rain
 13° /6° 3.5 mm 2
Jan. 7 Sunny
Sunny
 12° /6° 0 mm 2.4
Jan. 8 Cloudy
Cloudy
 12° /5° 0 mm 2.4
Jan. 9 Patchy rain possible
Patchy rain possible
 15° /4° 0.1 mm 2.4
Jan. 10 Light rain shower
Light rain shower
 14° /4° 1.3 mm 2.4
Jan. 11 Partly cloudy
Partly cloudy
 13° /3° 0 mm 2.5
Jan. 12 Sunny
Sunny
 14° /4° 0 mm 2.5
Jan. 13 Light rain
Light rain
 15° /4° 2.8 mm 2.5
Jan. 14 Sunny
Sunny
 17° /6° 0.4 mm 2.5
Jan. 15 Sunny
Sunny
 18° /7° 0 mm 2.6
Jan. 16 Patchy rain possible
Patchy rain possible
 18° /7° 1.1 mm 2.6
Jan. 17 Mist
Mist
 15° /6° 0.1 mm 2.6
Jan. 18 Mist
Mist
 16° /7° 0 mm 2.7
Jan. 19 Light rain
Light rain
 14° /6° 3.6 mm 2
Jan. 20 Light rain shower
Light rain shower
 15° /7° 1.7 mm 2
Jan. 21 Patchy rain possible
Patchy rain possible
 14° /7° 0.1 mm 2.8
Jan. 22 Moderate rain
Moderate rain
 15° /7° 11.1 mm 2.8
Jan. 23 Patchy rain possible
Patchy rain possible
 15° /7° 0 mm 2.9
Jan. 24 Light rain
Light rain
 14° /7° 1.1 mm 2.9
Jan. 25 Mist
Mist
 14° /5° 0 mm 2.9
Jan. 26 Cloudy
Cloudy
 16° /6° 0.8 mm 3
Jan. 27 Partly cloudy
Partly cloudy
 16° /6° 0 mm 3
Jan. 28 Partly cloudy
Partly cloudy
 17° /7° 0 mm 3.1
Jan. 29 Partly cloudy
Partly cloudy
 15° /6° 0 mm 3
Jan. 30 Overcast
Overcast
 16° /8° 0 mm 3
Jan. 31 Heavy rain
Heavy rain
 15° /9° 17.9 mm 2
Next
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.
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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 15° and lows near 6°, suitable for diverse activities and preferences.

How much rainfall should be expected in Sunnyvale during January?
Moderate rainfall is anticipated in Sunnyvale during January, with a total of 84.8 mm spread over approximately 6 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Sunnyvale during January?
The average wind speed in Sunnyvale during January is 9 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 💧
Typically, Sunnyvale has 6 rainy days in January with a total of 84.8 mm of rainfall.
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Location coordinates Where is Sunnyvale?

Get accurate weather forecasts for Sunnyvale, located at latitude 37.369 and longitude -122.036. Stay updated with localized weather information tailored for Sunnyvale.

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