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Weather in Sunnyvale for December 2024

Your guide to Sunnyvale weather in December - trends and predictions
  • In general, the average temperature in Sunnyvale at the beginning of December is 15.6 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 15.3 °F by the end of December.

  • Sunnyvale sees moderate rainfall in December, averaging 10 rainy days.

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Average dry days
21
Dry days
Average rainy days
10
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/9°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Sunnyvale in December average weather

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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

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Date Weather Temperatures Rain UV More
Dec. 1 Mist
Mist
15° /6° 0 mm 4
Dec. 2 Patchy rain possible
Patchy rain possible
15° /9° 0.1 mm 4
Dec. 3 Mist
Mist
16° /10° 0 mm 4
Dec. 4 Mist
Mist
14° /11° 0 mm 3
Dec. 5 Mist
Mist
20° /10° 0 mm 5
Dec. 6 Light rain
Light rain
15° /9° 2 mm 4
Dec. 7 Light rain shower
Light rain shower
14° /8° 2.2 mm 3
Dec. 8 Cloudy
Cloudy
13° /6° 0 mm 3
Dec. 9 Cloudy
Cloudy
15° /3° 0 mm 3
Dec. 10 Overcast
Overcast
14° /5° 0 mm 3
Dec. 11 Overcast
Overcast
16° /7° 0 mm 4
Dec. 12 Overcast
Overcast
17° /8° 0 mm 4
Dec. 13 Overcast
Overcast
16° /7° 0 mm 4
Dec. 14 Overcast
Overcast
17° /8° 0 mm 4
Dec. 15 Sunny
Sunny
17° /8° 0 mm 5
Dec. 16 Partly cloudy
Partly cloudy
19° /8° 0 mm 5
Dec. 17 Patchy rain possible
Patchy rain possible
19° /10° 0.1 mm 4
Dec. 18 Light rain shower
Light rain shower
14° /12° 13.5 mm 3
Dec. 19 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
16° /12° 18.6 mm 4
Dec. 20 Light rain shower
Light rain shower
13° /11° 27 mm 3
Dec. 21 Partly cloudy
Partly cloudy
15° /9° 0 mm 5
Dec. 22 Sunny
Sunny
17° /9° 0 mm 5
Dec. 23 Partly cloudy
Partly cloudy
15° /7° 0 mm 5
Dec. 24 Overcast
Overcast
15° /8° 0 mm 4
Dec. 25 Partly cloudy
Partly cloudy
16° /8° 0 mm 5
Dec. 26 Cloudy
Cloudy
16° /8° 0 mm 4
Dec. 27 Light rain shower
Light rain shower
16° /9° 4 mm 4
Dec. 28 Patchy rain possible
Patchy rain possible
17° /12° 0.4 mm 4
Dec. 29 Light rain
Light rain
16° /11° 12.4 mm 4
Dec. 30 Light rain shower
Light rain shower
14° /10° 5.3 mm 3
Dec. 31 Light rain shower
Light rain shower
12° /9° 1 mm 3
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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 86.5 mm spread over approximately 10 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 9 km/h, suggesting breezy to windy conditions, depending on your activities.

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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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