Santa Rosa weather in September (California, United States of America)
Interested in knowing the climate of Santa Rosa in September? Thinking about a visit? Explore this page for a full overview of the weather conditions this month.
Temperatures
The weather in Santa Rosa during September is usually perfect, offering high temperatures and low rainfall. Summer occurs in September. Throughout the day, temperatures typically settle at around 28°C. But by evening, they drop to around 11°C. Expect high temperatures this month, marking it as the warmest of the year. Prepare with lightweight clothing and plenty of sunscreen to stay comfortable.
Precipitation
Santa Rosa in September usually receives low rainfall, averaging around 5.8 mm for the month. Climate data suggests that about 2 days will experience rainfall.Average sunshine
The city usually sees around 275 hours of sunlight, indicating many sunny days.If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Santa Rosa. April, May, June, July, August, September and October typically offer the best circumstances. While January, February and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Santa Rosa climate page with graphs.
Santa Rosa, monthly averages in September
Min Temperature
11°C
Max Temperature
28°C
Chance of Rain
6%
Precipitation
5.8 mm
Rainy days
2 days
Sunshine
275 hours *
Percentage Sunshine
77% *
Where to go in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in Santa Rosa.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
