The best times to visit Rancho Bernardo for ideal weather are
April 16th to November 4th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Rancho Bernardo Travel Guide
Other Rancho Bernardo Travel Info
Weather in Rancho Bernardo
Average temperatures in Rancho Bernardo vary greatly. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 51st percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Rancho Bernardo, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally late August to early September where highs are regularly around 94.8°F (34.9°C) with temperatures rarely dropping below 59.7°F (15.4°C) at night.
Rancho Bernardo Temperatures (Fahrenheit)
Rancho Bernardo Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Rancho Bernardo Perceived Temperature (F)
Rancho Bernardo Perceived Temperature (C)
Average Rancho Bernardo Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Rancho Bernardo are June, August, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early June. For example, on the week of June 4th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in mid December with an average of 2 days of significant precipitation the week of December 17th.
When can you find snow in Rancho Bernardo? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Rancho Bernardo.
Snow on the Ground
The graph below shows the average snow on the ground in Rancho Bernardo (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Rancho Bernardo has some comfortably humid months, with slightly drier months on the other side of the year. The least humid month is January (43.5% relative humidity), and the most humid month is February (56.4%).
Wind in Rancho Bernardo is usually calm. The windiest month is May, followed by July and April. May’s average wind speed of around 4.5 knots (5.2 MPH or 8.4 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in late February and early March where average top sustained speeds reach 14.1 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Rancho Bernardo.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||4.2||Light breeze||11.6||Significant breeze|
|Feb||4||Light breeze||11.7||Significant breeze|
|Mar||4.1||Light breeze||12.3||Significant breeze|
|Apr||4.4||Light breeze||12.5||Significant breeze|
|May||4.5||Light breeze||11.7||Significant breeze|
|Jun||4.3||Light breeze||11||Significant breeze|
|Jul||4.5||Light breeze||11.1||Significant breeze|
|Aug||4.2||Light breeze||11.3||Significant breeze|
|Sep||3.9||Barely noticeable||11.5||Significant breeze|
|Oct||3.8||Barely noticeable||11.8||Significant breeze|
|Nov||3.9||Barely noticeable||11.7||Significant breeze|
|Dec||3.9||Barely noticeable||11.6||Significant breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Rancho Bernardo?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Rancho Bernardo, CA, US is July, followed by June and May. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Rancho Bernardo in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Rancho Bernardo Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 79.7°F (26.5°C) and 66.4°F (19.1°C) with warmer temperatures in the later months. Rain is rare with 1 to 2 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the least precipitation with about 0 days of precipitation per month. June – August is the busiest season for tourism in Rancho Bernardo, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 92.5°F (33.6°C) and 70.9°F (21.6°C), which will feel comfortable given the humidity and wind. It rains or snows a normal amount: 0 to 3 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is too cold this time of year in Rancho Bernardo to be enjoyable for warm weather travelers. The average high during this season is between 70°F (21.1°C) and 62.8°F (17.1°C). On average, it rains or snows a fair amount: 3 to 5 times per month. These times of year are fairly slow with tourists.