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Fairfield (CA)
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United States weather

Weather in Fairfield, California for October 2025

Your guide to Fairfield weather in October - trends and predictions

    Temperatures

  • Until now, October 2025 in Fairfield is cooler than usual, with temperatures averaging 22 °F, this is -3.9 °F below the typical seasonal average.

  • The forecast for the upcoming days in Fairfield predicts a temperature of 25.8 °F, which is slightly above the historical average.

  • In general, the average temperature in Fairfield at the beginning of October is 32.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.3 °F by the end of October.

    • Rain 🌧️

  • With an average of 2 rainy days, Fairfield experiences minimal rainfall in October.

    • More

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

Average dry days
29
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
28°/13°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
52 %
Avg humidity

Fairfield Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
29°
2
Sunny
32°
3
Sunny
31°
4
Overcast
30°
5
Cloudy
33°
6
Sunny
36°
7
Cloudy
36°
8
Partly cloudy
26°
9
Cloudy
24°
10
Overcast
25°
11
Overcast
22°
12
Overcast
25°
13
Overcast
21°
14
Overcast
19°
15
Overcast
22°
16
Moderate or heavy rain shower
24°
17
Overcast
24°
18
Cloudy
26°
19
Sunny
27°
20
Partly cloudy
27°
21
Partly cloudy
27°
22
Cloudy
21°
23
Cloudy
25°
24
Sunny
22°
25
Overcast
22°
26
Partly cloudy
22°
27
Patchy rain possible
22°
28
Patchy rain possible
22°
29
Sunny
31°
30
Mist
17°
31
Sunny
27°

Temperatures trend during October in Fairfield

See the weather trend as well as the moving average line

October weather in Fairfield day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
Oct. 1 Sunny
Sunny
 29° /17° 9.9 mm 7
Oct. 2 Sunny
Sunny
 32° /17° 0 mm 8
Oct. 3 Sunny
Sunny
 31° /14° 0 mm 7
Oct. 4 Overcast
Overcast
 30° /14° 0 mm 7
Oct. 5 Cloudy
Cloudy
 33° /15° 0 mm 7
Oct. 6 Sunny
Sunny
 36° /18° 0 mm 9
Oct. 7 Cloudy
Cloudy
 36° /18° 0 mm 8
Oct. 8 Partly cloudy
Partly cloudy
 26° /13° 0 mm 6
Oct. 9 Cloudy
Cloudy
 24° /12° 0 mm 5
Oct. 10 Overcast
Overcast
 25° /10° 0 mm 6
Oct. 11 Overcast
Overcast
 22° /10° 0 mm 5
Oct. 12 Overcast
Overcast
 25° /11° 0 mm 6
Oct. 13 Overcast
Overcast
 21° /11° 13.4 mm 5
Oct. 14 Overcast
Overcast
 19° /11° 15.7 mm 4
Oct. 15 Overcast
Overcast
 22° /11° 0 mm 5
Oct. 16 Moderate or heavy rain shower
Moderate or heavy rain shower
 24° /10° 8.6 mm 6
Oct. 17 Overcast
Overcast
 24° /9° 0 mm 5
Oct. 18 Cloudy
Cloudy
 26° /11° 0 mm 7
Oct. 19 Sunny
Sunny
 27° /13° 0 mm 7
Oct. 20 Partly cloudy
Partly cloudy
 27° /12° 0 mm 7
Oct. 21 Partly cloudy
Partly cloudy
 27° /12° 0 mm 7
Oct. 22 Cloudy
Cloudy
 21° /10° 0 mm 5
Oct. 23 Cloudy
Cloudy
 25° /9° 0 mm 6
Oct. 24 Sunny
Sunny
 22° /11° 0 mm 6
Oct. 25 Overcast
Overcast
 22° /12° 0 mm 5
Oct. 26 Partly cloudy
Partly cloudy
 22° /11° 0 mm 6
Oct. 27 Patchy rain possible
Patchy rain possible
 22° /13° 0.1 mm 5
Oct. 28 Patchy rain possible
Patchy rain possible
 22° /9° 0.2 mm 6
Oct. 29 Sunny
Sunny
 31° /10° 0 mm 0.9
Oct. 30 Mist
Mist
 17° /11° 0 mm 0.8
Oct. 31 Sunny
Sunny
 27° /10° 0 mm 0.8
Next
Important Notice
Our weather forecast for Fairfield 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 Fairfield forecast closer to your planned date for the most up-to-date weather information.
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Fairfield in October - FAQ

What are the expected maximum and minimum temperatures in Fairfield during October?
Enjoy moderate daytime temperatures of up to 28° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Fairfield during October?
In October, Fairfield can expect light to moderate rainfall, totaling 20.4 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Fairfield during October?
The average wind speed in Fairfield during October is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Fairfield

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

UV exposure in Fairfield during October

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

Quick links

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Location coordinates Where is Fairfield?

Get accurate weather forecasts for Fairfield, located at latitude 38.249 and longitude -122.04. Stay updated with localized weather information tailored for Fairfield.

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