Healdsburg (CA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Healdsburg.
Climate overview of Healdsburg
Healdsburg, California, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 30°C (86°F) in July, while winters cool to 14°C (57°F) in December.
Annual rainfall is moderate at around 913 mm (36 in), with December being the wettest month. The city also has a distinct dry season from May to September, with very warm summers and mild winters. The sunniest month is May, with 10.3 hours of sunshine per day on average.
Healdsburg Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Healdsburg - and find the best time to visit.
Monthly Temperature in Healdsburg
Depending on the time of the year, temperatures range from very warm to moderate in Healdsburg. Average daytime temperatures reach a very warm 30°C (86°F) in July. In December, the coolest month of the year, temperatures drop to a moderate 14°C (57°F).
At night, temperatures range from around 12°C (54°F) in July to 4°C (39°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Healdsburg
Generally, Healdsburg has a moderate amount of precipitation, averaging 913 mm (36 in) of rainfall annually. Healdsburg can be quite wet during December, receiving approximately 198 mm (7.8 in) of precipitation over 13 rainy days.
In contrast, during the driest month (August), you will experience much drier conditions, with 0.1 mm (0 in) of precipitation spread across 0 rainy days. For more details, please visit our Healdsburg 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 Healdsburg
Healdsburg 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
Best Time to Visit Healdsburg
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, 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 very warm summers and mild winters
Frequently asked questions about the climate in Healdsburg
What is the best time to visit Healdsburg?
April, May, June, August, September and October typically offer the most optimal weather in Healdsburg. In contrast, December tends to have less optimal conditions. Healdsburg has a distinct dry season from May to September, with very warm summers and mild winters.
What temperatures can I expect in Healdsburg?
Daytime highs range from 14°C (57°F) in December to 30°C (86°F) in July. Nighttime lows range from 4°C (39°F) to 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Healdsburg get?
Annual rainfall is around 913 mm (36 in). December is the wettest month with 198 mm (7.8 in), while August is the driest with 0.1 mm (0 in).
How sunny is Healdsburg?
Healdsburg 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, Healdsburg enjoys abundant sunshine.
Healdsburg 3-Day Forecast
Healdsburg on the map
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