Guerneville (CA) Weather and Climate: A Comprehensive Guide
Guerneville experiences great temperature shifts.
The city's weather can transition from warm days
to mild weather.
It is also known for its large amounts of rainfall.
Let’s explore the climate details in depth to provide you with a complete overview.
Average maximum day and minimum night temperature
The climate in Guerneville is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 28°C in July to a moderate 14°C in the coolest month, December.
Nights are cooler, with lows often dropping to around 3°C during the colder months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Guerneville has a notably wet climate with abundant precipitation, recording 1082 mm of rainfall per year. The climate in Guerneville shows significant variation throughout the year. Expect heavy rainfall in December, with an average of 243 mm of precipitation over 13 rainy days. In contrast, July offers drier and sunnier days, with around 0.9 mm of rainfall over a single rainy day. For more details, please visit our Guerneville Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
For those who appreciate different seasons, Guerneville serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 10.3 hours of sunshine daily, and embrace the darker days in December, offering only 5.3 hours of daily sunlight. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
broken clouds and chance of slight rain overcast and heavy rain partly cloudy and rainForecast for Guerneville (CA)
3 m/s
3 m/s
6 m/s
The best time of year to visit Guerneville in the United States of America
During the months of April, May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Most rainfall (rainy season) is seen in January, February, March and December.
Yes, the months of June, July, August and September are very dry.
July has an average maximum temperature of 28°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 14°C.
December tops the wettest month list with 243 mm of rainfall.
July is the driest month with 1 mm of precipitation.
May is the sunniest month with an average of 310 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
