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Rohnert Park (CA) Weather and Climate: A Comprehensive Guide

The temperature in Rohnert Park can vary greatly throughout the year. The temperatures shift from warm to mild. It receives a moderate amount of precipitation. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from comfortable to moderate in Rohnert Park. On average, daytime temperatures range from a comfortable 28°C in September to a moderate 14°C in January.

Nighttime temperatures can drop, with average lows reaching 3°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Rohnert Park has a moderate amount of precipitation, averaging 659 mm of rainfall annually. The seasons in Rohnert Park, bring significant changes in precipitation. The wettest month, December, receives high rainfall, with an average of 135 mm of precipitation. This rainfall is distributed across 12 rainy days.

In contrast, the driest month, August, experiences much less rainfall, totaling 0.3 mm over a single rainy day. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Rohnert Park Precipitation page.

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

Sunshine over the year

In Rohnert Park, summer days are longer and more sunny, with daily sunshine hours peaking at 10.3 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 5.3 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Healdsburg, the United States of America (33 KM, 20 Miles).

Daily hours of sunshine

Data from: Healdsburg, the United States of America (33 KM, 20 Miles).

Forecast for Rohnert Park (CA)

Sat   Jan 11
17°C | 5°C
N 4 m/s
clear and no rain

clear and no rain

Sun   Jan 12
15°C | 2°C
NW 3 m/s
clear and no rain

clear and no rain

Mon   Jan 13
14°C | 1°C
NE 5 m/s
clear and no rain

clear and no rain

Select a Month of Interest

Check the conditions for any month of the year.

The best time of year to visit Rohnert Park 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:
  • Does Rohnert Park have a dry season?
    Yes, the months of May, June, July, August and September are very dry.
  • Which is the warmest month in Rohnert Park?
    September has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Rohnert Park?
    The coldest month is December with an average maximum temperature of 14°C.
  • Which is the wettest month in Rohnert Park?
    December tops the wettest month list with 135 mm of rainfall.
  • Which is the driest month in Rohnert Park?
    August is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in Rohnert Park?
    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.