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Rancho Bernardo (CA) Weather and Climate: A Comprehensive Guide

The temperature in Rancho Bernardo can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and pleasant during the cooler months. It maintains fairly dry conditions year-round. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

Visitors to Rancho Bernardo can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a very warm 31°C in August, the warmest time of the year, to a pleasant 19°C during cooler months like January.

At night, temperatures typically drop to an average of around 6°C during these months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Rancho Bernardo typically sees modest rainfall throughout the year, with an average annual precipitation of 295 mm. Significant seasonal changes in precipitation occur throughout the year. During the wetter season, December receives moderate rainfall, averaging 79 mm of precipitation, recorded across 8 rainy days. In contrast, the drier season, June brings less rainfall, with 0.5 mm over 0 rainy days. For more details, please visit our Rancho Bernardo Precipitation page.

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

Sunshine over the year

While the amount of sunshine in Rancho Bernardo varies throughout the year, all seasons offer their own charm. Enjoy up to 10.1 hours of daily sun in July, and experience slightly darker atmosphere in February, with about 7.7 hours of daily sunlight. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: San Diego, the United States of America (35 KM, 21 Miles).

Daily hours of sunshine

Data from: San Diego, the United States of America (35 KM, 21 Miles).

Forecast for Rancho Bernardo (CA)

Fri   Dec 27
16°C | 6°C
SW 2 m/s
broken clouds and no rain

broken clouds and no rain

Sat   Dec 28
21°C | 6°C
W 2 m/s
partly cloudy and no rain

partly cloudy and no rain

Sun   Dec 29
20°C | 4°C
W 3 m/s
clear and no rain

clear and no rain

The best time of year to visit Rancho Bernardo in the United States of America

During the months of January, February, March, April, May and November 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 Rancho Bernardo have a dry season?
    Yes, the months of May, June, July, August, September and October are very dry.
  • Which is the warmest month in Rancho Bernardo?
    August has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Rancho Bernardo?
    The coldest month is January with an average maximum temperature of 19°C.
  • Which is the wettest month in Rancho Bernardo?
    December tops the wettest month list with 79 mm of rainfall.
  • Which is the driest month in Rancho Bernardo?
    June is the driest month with 1 mm of precipitation.
  • Which is the sunniest month in Rancho Bernardo?
    July is the sunniest month with an average of 304 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.