Sonoma (CA) Weather and Climate: A Comprehensive Guide
The temperature in Sonoma can vary greatly throughout the year.
The temperatures shift from warm
to mild.
It receives a reasonable amount of rainfall.
Now, let’s break down all the climate details for a clearer picture.
Average maximum day and minimum night temperature
Depending on the time of the year, temperatures range from comfortable to moderate in Sonoma. Average daytime temperatures reach a comfortable 30°C in July. In January, the coolest month of the year, temperatures drop to a moderate 14°C.
At night, you can expect cooler temperatures, with averages dropping to around 4°C during this month. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Generally, Sonoma has a moderate amount of precipitation, averaging 644 mm of rainfall annually. Sonoma can be quite wet during December, receiving approximately 134 mm of precipitation over 12 rainy days. In contrast August, experiences much drier conditions, with 0.1 mm of rainfall, spread across 0 rainy days. For more details, please visit our Sonoma 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
Sonoma can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 10.3 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 5.3 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
overcast and rain broken clouds and slight rain overcast and rainForecast for Sonoma (CA)
3 m/s
4 m/s
3 m/s
The best time of year to visit Sonoma 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:
Yes, the months of May, June, July, August and September are very dry.
July has an average maximum temperature of 30°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 14°C.
December tops the wettest month list with 134 mm of rainfall.
August is the driest month with 0 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.
