The temperatures in Santa Rosa in August are comfortable with low of 13°C and and high up to 29°C.
There is little to no rain in Santa Rosa 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 Santa Rosa in August 2025.
If you’re planning to visit Santa Rosa in the near future, we highly recommend that you review the 14 day weather forecast for Santa Rosa before you arrive.
Temperatures
29° / 13°
Rainy Days
0
Snowy Days
0
Dry Days
31
Rainfall
2
mm
Sun Hours
11.9
Hrs
