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Healdsburg (CA) Weather and Climate: A Comprehensive Guide

The temperature in Healdsburg can vary greatly throughout the year. The temperatures shift from very 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 very warm to moderate in Healdsburg. Average daytime temperatures reach a very warm 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, Healdsburg has a moderate amount of precipitation, averaging 913 mm of rainfall annually. Healdsburg can be quite wet during December, receiving approximately 198 mm of precipitation over 13 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 Healdsburg Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

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

Forecast for Healdsburg (CA)

Thu   Dec 26
13°C | 8°C
S 3 m/s
25 mm
broken clouds and rain

broken clouds and rain

Fri   Dec 27
17°C | 11°C
NW 3 m/s
11 mm
broken clouds and rain

broken clouds and rain

Sat   Dec 28
16°C | 11°C
S 3 m/s
2.5 mm
overcast and rain

overcast and rain

The best time of year to visit Healdsburg 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:
  • Which months have the greatest rainfall in Healdsburg?
    Most rainfall (rainy season) is seen in February and December.
  • Does Healdsburg have a dry season?
    Yes, the months of June, July, August and September are very dry.
  • Which is the warmest month in Healdsburg?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Healdsburg?
    The coldest month is January with an average maximum temperature of 14°C.
  • Which is the wettest month in Healdsburg?
    December tops the wettest month list with 198 mm of rainfall.
  • Which is the driest month in Healdsburg?
    August is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in Healdsburg?
    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.