Guerneville weather in September (California, United States of America)
Planning a trip to Guerneville in September? Wondering if it's the right time to visit? Browse this page for a comprehensive overview of the weather conditions for that month.
In Guerneville, September is characterized by high temperatures and low rainfall. September is a summer month. Throughout the daytime, temperatures often hover around 27°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 10°C.
Guerneville in September usually receives low rainfall, averaging around 7.4 mm for the month. When we look at the climate data from the last 30 years, we can expect around 2 days of rain.
With around 275 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.
If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Guerneville. April, May, June, July, August, September and October typically offer the best circumstances. While February and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Guerneville climate page with graphs.
Guerneville, monthly averages in September
Min Temperature
10°C
Max Temperature
27°C
Chance of Rain
7%
Precipitation
7.4 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 in September and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Guerneville in September?
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 in September.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Guerneville.
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 climate conditions. Find out where to go with our weather planner.
