Windsor (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Windsor.
Climate overview of Windsor
Windsor, California, United States of America, sees big temperature differences between seasons, with July peaking at 29°C (84°F) and December dropping to 14°C (57°F).
With around 793 mm (31 in) of annual rainfall, the city has moderate precipitation levels. December is the wettest month and August the driest. It also has a distinct dry season from May to September, with warm summers and mild winters. The sunniest month is May, with 10.3 hours of sunshine per day on average.
Windsor Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Windsor - and find the best time to visit.
Monthly Temperature in Windsor
Visitors to Windsor can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a comfortable 29°C (84°F) in July to a moderate 14°C (57°F) in the coolest month, December.
Nights vary from 11°C (52°F) in July to around 3°C (37°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Windsor
Generally, Windsor experiences moderate precipitation patterns, averaging 793 mm (31 in) yearly. The climate in Windsor shows significant variation throughout the year. Expect heavy rainfall in December, the wettest month, with an average of 162 mm (6.4 in) of precipitation over 14 rainy days.
In contrast, the driest month August offers drier and sunnier days, with around 0.1 mm (0 in) of rainfall over 0 rainy days. For more details, please visit our Windsor Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Windsor
For those who appreciate different seasons, Windsor 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
Best Time to Visit Windsor
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: April, May, June, July, August, September and October
- Warmest weather: June, July, August and September
- Most sunshine: April, May, June and July
- Fewest rainy days: June, July, August and September
- Wettest months: January, February, March, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from May to September, with warm summers and mild winters
Frequently asked questions about the climate in Windsor
What is the best time to visit Windsor?
April, May, June, July, August, September and October typically offer the most optimal weather in Windsor. In contrast, January, February and December tend to have less optimal conditions. Windsor has a distinct dry season from May to September, with warm summers and mild winters.
What temperatures can I expect in Windsor?
Daytime highs range from 14°C (57°F) in December to 29°C (84°F) in July. Nighttime lows range from 3°C (37°F) to 11°C (52°F). Temperatures vary considerably through the year.
How much rain does Windsor get?
Annual rainfall is around 793 mm (31 in). December is the wettest month with 162 mm (6.4 in), while August is the driest with 0.1 mm (0 in).
How sunny is Windsor?
Windsor receives around 3,042 hours of sunshine per year. May is the sunniest month with 310 hours, while December is the cloudiest with just 160 hours. Overall, Windsor enjoys abundant sunshine.
Windsor 3-Day Forecast
Windsor (CA) 3-Day Forecast
Windsor on the map
Windsor is highlighted - select any city to see its climate.
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