The temperatures in Sonoma in October are comfortable with low of 12°C and and high up to 24°C.
The wather in Sonoma in October can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Sonoma in October 2025.
If you’re planning to visit Sonoma in the near future, we highly recommend that you review the 14 day weather forecast for Sonoma before you arrive.
Temperatures
24° / 12°
Rainy Days
2
Snowy Days
0
Dry Days
29
Rainfall
45
mm
Sun Hours
10.0
Hrs
