The temperatures in American Canyon in August are comfortable with low of 14°C and and high up to 29°C.
There is little to no rain in American Canyon 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 American Canyon in August 2025.
If you’re planning to visit American Canyon in the near future, we highly recommend that you review the 14 day weather forecast for American Canyon before you arrive.
Temperatures
29° / 14°
Rainy Days
0
Snowy Days
0
Dry Days
31
Rainfall
0
mm
Sun Hours
11.6
Hrs