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United States weather

Weather in Vacaville, California for October 2025

Your guide to Vacaville weather in October - trends and predictions

    Official Weather Alert ⚠️

  • Beach Hazards Statement - See hour by hour.

    • Temperatures

  • Until now, October 2025 in Vacaville is cooler than usual, with temperatures averaging 23.2 °F, this is -3.1 °F below the typical seasonal average.

  • Expect cooler weather in the next days in Vacaville with the forecast suggesting a temperature of 23.6 °F, lower than the historical average.

  • In general, the average temperature in Vacaville at the beginning of October is 29.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.3 °F by the end of October.

    • Rain 🌧️

  • With an average of 4 rainy days, Vacaville experiences minimal rainfall in October.

    • More

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

Average dry days
27
Dry days
Average rainy days
4
Rainy days
Average snowy days
0
Snow days
Average temperatures
27°/12°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
51 %
Avg humidity

Vacaville Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate or heavy rain shower
16°
2
Fog
23°
3
Sunny
31°
4
Overcast
31°
5
Partly cloudy
34°
6
Sunny
35°
7
Overcast
37°
8
Sunny
30°
9
Partly cloudy
25°
10
Overcast
26°
11
Overcast
23°
12
Cloudy
26°
13
Overcast
21°
14
Overcast
20°
15
Overcast
23°
16
Moderate or heavy rain shower
24°
17
Overcast
25°
18
Partly cloudy
26°
19
Sunny
27°
20
Partly cloudy
27°
21
Partly cloudy
27°
22
Overcast
22°
23
Sunny
25°
24
Sunny
22°
25
Weather Alert Sunny
21°
26
Partly cloudy
19°
27
Sunny
22°
28
Sunny
26°
29
Sunny
27°
30
Sunny
28°
31
Sunny
27°

Temperatures trend during October in Vacaville

See the weather trend as well as the moving average line

October weather in Vacaville day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
Oct. 1 Moderate or heavy rain shower
Moderate or heavy rain shower
 16° /14° 13.6 mm 4
Oct. 2 Fog
Fog
 23° /13° 0 mm 5
Oct. 3 Sunny
Sunny
 31° /15° 0 mm 8
Oct. 4 Overcast
Overcast
 31° /15° 0 mm 7
Oct. 5 Partly cloudy
Partly cloudy
 34° /15° 0 mm 8
Oct. 6 Sunny
Sunny
 35° /18° 0 mm 9
Oct. 7 Overcast
Overcast
 37° /18° 0 mm 9
Oct. 8 Sunny
Sunny
 30° /14° 0 mm 8
Oct. 9 Partly cloudy
Partly cloudy
 25° /12° 0 mm 7
Oct. 10 Overcast
Overcast
 26° /9° 0 mm 6
Oct. 11 Overcast
Overcast
 23° /9° 0 mm 6
Oct. 12 Cloudy
Cloudy
 26° /10° 0 mm 7
Oct. 13 Overcast
Overcast
 21° /10° 15.2 mm 5
Oct. 14 Overcast
Overcast
 20° /11° 7.7 mm 5
Oct. 15 Overcast
Overcast
 23° /11° 0 mm 5
Oct. 16 Moderate or heavy rain shower
Moderate or heavy rain shower
 24° /10° 2.5 mm 6
Oct. 17 Overcast
Overcast
 25° /9° 0 mm 6
Oct. 18 Partly cloudy
Partly cloudy
 26° /11° 0 mm 7
Oct. 19 Sunny
Sunny
 27° /13° 0 mm 7
Oct. 20 Partly cloudy
Partly cloudy
 27° /11° 0 mm 7
Oct. 21 Partly cloudy
Partly cloudy
 27° /10° 0 mm 7
Oct. 22 Overcast
Overcast
 22° /9° 0 mm 5
Oct. 23 Sunny
Sunny
 25° /10° 0 mm 6
Oct. 24 Sunny
Sunny
 22° /10° 0 mm 6
Oct. 25 Sunny
Sunny
 21° /13° 0.1 mm 0.3
Oct. 26 Partly cloudy
Partly cloudy
 19° /9° 0 mm 0.4
Oct. 27 Sunny
Sunny
 22° /11° 0 mm 0.9
Oct. 28 Sunny
Sunny
 26° /12° 0 mm 0.8
Oct. 29 Sunny
Sunny
 27° /14° 0 mm 0
Oct. 30 Sunny
Sunny
 28° /15° 0 mm 6
Oct. 31 Sunny
Sunny
 27° /14° 0 mm 5
Next
Important Notice
Our weather forecast for Vacaville in October 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.
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Vacaville in October - FAQ

What are the expected maximum and minimum temperatures in Vacaville during October?
Enjoy moderate daytime temperatures of up to 27° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Vacaville during October?
In October, Vacaville can expect light to moderate rainfall, totaling 21.3 mm across approximately 4 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Vacaville during October?
The average wind speed in Vacaville during October is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Vacaville

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

UV exposure in Vacaville during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️

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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.

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