The temperatures in Sonoma in August are comfortable with low of 13°C and and high up to 28°C.
There is little to no rain in Sonoma during August, so it’s a lot easier to explore the city. Just remember to dress in warm layers, as it can still get pretty chilly.
Our weather forecast can give you a great sense of what weather to expect in Sonoma in August 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
28° / 13°
Rainy Days
0
Snowy Days
0
Dry Days
31
Rainfall
0
mm
Sun Hours
11.5
Hrs
