easeweather.com

Weather in Vacaville, California for December 2025

Your guide to Vacaville weather in December - trends and predictions

    Temperatures

  • In general, the average temperature in Vacaville at the beginning of December is 16.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.6 °F by the end of December.

  • Rain 🌧️

  • The climate of Vacaville in December is notably wet, with an average of 11 rainy days, and a total of 226.5 mm of precipitation.

  • More

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

Average dry days
20
Dry days
Average rainy days
11
Rainy days
Average snowy days
0
Snow days
Average temperatures
13°/6°
Temperatures
Average wind speed
12 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Vacaville Weather December

Move between months or click on a day

Temperatures trend during December in Vacaville

See the weather trend as well as the moving average line

December weather in Vacaville day by day

Click on a date for more information
Date Weather Temperatures Rain UV More
Dec. 1 Overcast
Overcast
17° /6° 0 mm 4
Dec. 2 Sunny
Sunny
17° /5° 0 mm 5
Dec. 3 Sunny
Sunny
17° /5° 0 mm 5
Dec. 4 Sunny
Sunny
17° /5° 0 mm 5
Dec. 5 Cloudy
Cloudy
17° /7° 0 mm 4
Dec. 6 Cloudy
Cloudy
16° /5° 0 mm 4
Dec. 7 Overcast
Overcast
13° /4° 0 mm 3
Dec. 8 Partly cloudy
Partly cloudy
18° /7° 0 mm 5
Dec. 9 Sunny
Sunny
15° /6° 0 mm 5
Dec. 10 Sunny
Sunny
12° /1° 0 mm 4
Dec. 11 Overcast
Overcast
13° /2° 0 mm 3
Dec. 12 Moderate or heavy rain shower
Moderate or heavy rain shower
11° /8° 37.1 mm 3
Dec. 13 Moderate rain at times
Moderate rain at times
12° /7° 5.3 mm 3
Dec. 14 Moderate or heavy rain shower
Moderate or heavy rain shower
12° /7° 97.7 mm 3
Dec. 15 Overcast
Overcast
9° /3° 0 mm 2
Dec. 16 Moderate or heavy rain shower
Moderate or heavy rain shower
8° /4° 12.3 mm 2
Dec. 17 Overcast
Overcast
12° /7° 0 mm 3
Dec. 18 Overcast
Overcast
12° /4° 0 mm 3
Dec. 19 Overcast
Overcast
10° /4° 0 mm 3
Dec. 20 Overcast
Overcast
10° /4° 0 mm 3
Dec. 21 Moderate or heavy rain shower
Moderate or heavy rain shower
9° /6° 11.2 mm 2
Dec. 22 Moderate rain at times
Moderate rain at times
15° /8° 1.5 mm 4
Dec. 23 Patchy rain possible
Patchy rain possible
16° /12° 0.7 mm 4
Dec. 24 Moderate or heavy rain shower
Moderate or heavy rain shower
13° /8° 18.2 mm 3
Dec. 25 Overcast
Overcast
11° /4° 0 mm 3
Dec. 26 Moderate or heavy rain shower
Moderate or heavy rain shower
12° /7° 16.4 mm 3
Dec. 27 Moderate or heavy rain shower
Moderate or heavy rain shower
13° /9° 18.7 mm 3
Dec. 28 Patchy rain possible
Patchy rain possible
15° /10° 0.2 mm 3
Dec. 29 Moderate or heavy rain shower
Moderate or heavy rain shower
14° /7° 7.2 mm 3
Dec. 30 Cloudy
Cloudy
12° /4° 0 mm 3
Dec. 31 Partly cloudy
Partly cloudy
11° /1° 0 mm 4
Next
Important Notice
Our weather forecast for Vacaville 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 Vacaville forecast closer to your planned date for the most up-to-date weather information.

Vacaville in December - FAQ

What are the expected maximum and minimum temperatures in Vacaville during December?
During December, expect a variety of temperatures with highs around 13° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Vacaville during December?
Significant rainfall exceeding 226.5 mm is expected in Vacaville during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Vacaville during December?
The average wind speed in Vacaville during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Vacaville

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

Quick links

More Vacaville weather pages
Location coordinates Where is Vacaville?

Get accurate weather forecasts for Vacaville, located at latitude 38.357 and longitude -121.988. Stay updated with localized weather information tailored for Vacaville.

Found a mistake?
We appreciate your attention to details. Tell us here.