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Weather in Sunnyvale for December 2024

Your guide to Sunnyvale weather in December - trends and predictions

    Temperatures

  • Until now, December 2024 in Sunnyvale is slightly cooler than the historical average by -0.6 °F.

  • The forecast for the next days in Sunnyvale predicts temperatures to be around 15 °F, close to the historical average.

  • In general, the average temperature in Sunnyvale at the beginning of December is 17.3 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 15.4 °F by the end of December.

    • Rain 🌧️

  • Sunnyvale experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 84.4 mm.

    • More

  • Christmas Day weather in Sunnyvale 🎄 - See the complete forecast for Wednesday, December 25.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
22
Dry days
Average rainy days
9
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/9°
Temperatures
Average wind speed
8 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Sunnyvale in December average weather

Move between months or click on a day
November
January
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Mist
18°
2
Patchy rain possible
17°
3
Mist
18°
4
Mist
17°
5
Mist
19°
6
Light rain
17°
7
Light rain shower
15°
8
Cloudy
15°
9
Cloudy
15°
10
Overcast
17°
11
Overcast
16°
12
Overcast
14°
13
Overcast
14°
14
Overcast
15°
15
Sunny
14°
16
Partly cloudy
15°
17
Patchy rain possible
17°
18
Light rain shower
14°
19
Moderate or heavy rain with thunder
18°
20
Light rain shower
15°
21
Overcast
15°
22
Moderate rain
17°
23
Overcast
16°
24
Heavy rain
13°
25
Sunny
13°
26
Overcast
15°
27
Overcast
15°
28
Overcast
18°
29
Mist
17°
30
Partly cloudy
15°
31
Partly cloudy
15°
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Access Sunnyvale weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
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Temperatures trend during December in Sunnyvale

See the weather trend as well as the moving average line

December weather day by day

Click on a date for more information
November January
Date Weather Temperatures Rain UV More
Dec. 1 Mist
Mist
 18° /8° 0 mm 5
Dec. 2 Patchy rain possible
Patchy rain possible
 17° /9° 0 mm 5
Dec. 3 Mist
Mist
 18° /8° 0 mm 5
Dec. 4 Mist
Mist
 17° /9° 0 mm 4
Dec. 5 Mist
Mist
 19° /8° 0 mm 5
Dec. 6 Light rain
Light rain
 17° /8° 1 mm 4
Dec. 7 Light rain shower
Light rain shower
 15° /7° 1.1 mm 4
Dec. 8 Cloudy
Cloudy
 15° /6° 0 mm 4
Dec. 9 Cloudy
Cloudy
 15° /4° 0 mm 3
Dec. 10 Overcast
Overcast
 17° /4° 0 mm 4
Dec. 11 Overcast
Overcast
 16° /7° 0 mm 5
Dec. 12 Overcast
Overcast
 14° /9° 9.8 mm 4
Dec. 13 Overcast
Overcast
 14° /8° 0 mm 4
Dec. 14 Overcast
Overcast
 15° /8° 30.9 mm 4
Dec. 15 Sunny
Sunny
 14° /7° 0 mm 4
Dec. 16 Partly cloudy
Partly cloudy
 15° /7° 0 mm 4
Dec. 17 Patchy rain possible
Patchy rain possible
 17° /9° 0 mm 4
Dec. 18 Light rain shower
Light rain shower
 14° /9° 6.7 mm 3
Dec. 19 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 18° /9° 9.3 mm 5
Dec. 20 Light rain shower
Light rain shower
 15° /11° 13.5 mm 4
Dec. 21 Overcast
Overcast
 15° /9° 0 mm 0.2
Dec. 22 Moderate rain
Moderate rain
 17° /12° 6.8 mm 0.4
Dec. 23 Overcast
Overcast
 16° /12° 0 mm 0.3
Dec. 24 Heavy rain
Heavy rain
 13° /9° 26.2 mm 0.3
Dec. 25 Sunny
Sunny
 13° /7° 0 mm 0.4
Dec. 26 Overcast
Overcast
 15° /9° 0 mm 0
Dec. 27 Overcast
Overcast
 15° /11° 0.1 mm 3
Dec. 28 Overcast
Overcast
 18° /11° 0 mm 3
Dec. 29 Mist
Mist
 17° /12° 0.1 mm 3
Dec. 30 Partly cloudy
Partly cloudy
 15° /9° 0 mm 4
Dec. 31 Partly cloudy
Partly cloudy
 15° /8° 0 mm 4
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Important Notice
Our weather forecast for Sunnyvale in December 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 December - FAQ

What are the expected maximum and minimum temperatures in Sunnyvale during December?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sunnyvale during December?
Moderate rainfall is anticipated in Sunnyvale during December, with a total of 84.4 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Sunnyvale during December?
The average wind speed in Sunnyvale during December is 8 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Sunnyvale

Explore the daily rainfall trends and prepare for Sunnyvales December weather 💧

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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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