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United States weather

Weather in Alameda County, California for October 2026

Your guide to Alameda County weather in October - trends and predictions

    Temperatures

  • In general, the average temperature in Alameda County at the beginning of October is 20.9 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 17.9 °C by the end of October.

    • Rain 🌧️

  • With an average of 5 rainy days, Alameda County experiences minimal rainfall in October.

    • More

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

Average dry days
26
Dry days
Average rainy days
5
Rainy days
Average snowy days
0
Snow days
Average temperatures
18°/12°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Alameda County Weather October

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

Temperatures trend during October in Alameda County

See the weather trend as well as the moving average line

October weather in Alameda County day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
Oct. 1 Mist
Mist
 22° /14° 17.3 mm 5
Oct. 2 Fog
Fog
 20° /14° 0 mm 5
Oct. 3 Mist
Mist
 19° /12° 0 mm 4
Oct. 4 Partly cloudy
Partly cloudy
 20° /14° 0 mm 5
Oct. 5 Sunny
Sunny
 23° /15° 0 mm 6
Oct. 6 Partly cloudy
Partly cloudy
 22° /14° 0 mm 5
Oct. 7 Partly cloudy
Partly cloudy
 20° /14° 0 mm 5
Oct. 8 Mist
Mist
 18° /11° 0 mm 4
Oct. 9 Light rain
Light rain
 16° /12° 0.4 mm 4
Oct. 10 Fog
Fog
 15° /11° 0.1 mm 3
Oct. 11 Fog
Fog
 16° /12° 0 mm 4
Oct. 12 Fog
Fog
 17° /12° 0 mm 4
Oct. 13 Mist
Mist
 16° /12° 14 mm 4
Oct. 14 Patchy rain possible
Patchy rain possible
 16° /11° 1.1 mm 4
Oct. 15 Mist
Mist
 18° /12° 0 mm 4
Oct. 16 Fog
Fog
 16° /12° 0 mm 4
Oct. 17 Fog
Fog
 19° /11° 0 mm 4
Oct. 18 Fog
Fog
 22° /11° 0 mm 5
Oct. 19 Partly cloudy
Partly cloudy
 21° /12° 0 mm 5
Oct. 20 Mist
Mist
 21° /12° 0 mm 5
Oct. 21 Patchy rain possible
Patchy rain possible
 18° /12° 0 mm 4
Oct. 22 Patchy rain possible
Patchy rain possible
 16° /11° 0.1 mm 4
Oct. 23 Fog
Fog
 16° /11° 0 mm 3
Oct. 24 Fog
Fog
 19° /11° 0 mm 5
Oct. 25 Overcast
Overcast
 18° /13° 0 mm 4
Oct. 26 Partly cloudy
Partly cloudy
 18° /11° 1 mm 5
Oct. 27 Overcast
Overcast
 17° /12° 0 mm 4
Oct. 28 Partly cloudy
Partly cloudy
 18° /11° 0 mm 5
Oct. 29 Sunny
Sunny
 19° /10° 0 mm 5
Oct. 30 Sunny
Sunny
 16° /10° 0 mm 4
Oct. 31 Overcast
Overcast
 19° /11° 1 mm 5
Next
Important Notice
Our weather forecast for Alameda County 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 Alameda County forecast closer to your planned date for the most up-to-date weather information.
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Alameda County in October - FAQ

What are the expected maximum and minimum temperatures in Alameda County during October?

Enjoy moderate daytime temperatures of up to 18° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Alameda County during October?

In October, Alameda County can expect light to moderate rainfall, totaling 35.1 mm across approximately 5 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Alameda County during October?

The average wind speed in Alameda County during October is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Alameda County

Explore the daily rainfall trends and prepare for Alameda Countys October weather 💧
Typically, Alameda County has 5 rainy days in October with a total of 35.1 mm of rainfall.

UV exposure in Alameda County during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Location coordinates Where is Alameda County?

Get accurate weather forecasts for Alameda County, located at latitude 37.804 and longitude -122.271. Stay updated with localized weather information tailored for Alameda County.

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