Monthly weather forecast and climate
Rancho Bernardo, CA

Weather in January

January, like December, in Rancho Bernardo, California, is another comfortable winter month, with temperature in the range of an average high of 66.4°F (19.1°C) and an average low of 48.4°F (9.1°C). In Rancho Bernardo, California, the average high-temperature in January is essentially the same as in December - a still enjoyable 66.4°F (19.1°C). Weather in January »

Weather in February

The last month of the winter, February, is another comfortable month in Rancho Bernardo, California, with average temperature ranging between min 47.1°F (8.4°C) and max 64.9°F (18.3°C). In Rancho Bernardo, California, the average high-temperature is essentially the same as in January - a still enjoyable 64.9°F (18.3°C). Weather in February »

Weather in March

The first month of the spring, March, is still a comfortable month in Rancho Bernardo, California, with average temperature varying between 67.5°F (19.7°C) and 48.2°F (9°C). In March, the average high-temperature is almost the same as in February - a still comfortable 67.5°F (19.7°C). Weather in March »

Weather in April

April in Rancho Bernardo, California, is an agreeable spring month, with average temperature varying between 70.2°F (21.2°C) and 49.8°F (9.9°C). In Rancho Bernardo, California, the average high-temperature is practically the same as in March - an agreeable 70.2°F (21.2°C). Weather in April »

Weather in May

May, the last month of the spring, in Rancho Bernardo, is another pleasant month, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 52.5°F (11.4°C). In Rancho Bernardo, the average high-temperature is practically the same as in April - a still pleasant 71.6°F (22°C). Weather in May »

Weather in June

June, the first month of the summer, in Rancho Bernardo, is a moderately hot month, with average temperature varying between 77.2°F (25.1°C) and 56.1°F (13.4°C). In Rancho Bernardo, the average high-temperature in June slightly increases, from an agreeable 71.6°F (22°C) in May, to a moderately hot 77.2°F (25.1°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Rancho Bernardo, California, with average temperature ranging between max 82.2°F (27.9°C) and min 62.4°F (16.9°C). In July, the average high-temperature is practically the same as in June - a still warm 82.2°F (27.9°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Rancho Bernardo, California, with average temperature fluctuating between 84.2°F (29°C) and 64.4°F (18°C). With an average high-temperature of 84.2°F (29°C) and an average low-temperature of 64.4°F (18°C), August is the warmest month. The average heat index is calculated to a hot 88.2°F (31.2°C). Weather in August »

Weather in September

September, the first month of the autumn, in Rancho Bernardo, is also a moderately hot month, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 82.6°F (28.1°C). In Rancho Bernardo, the average high-temperature in September is essentially the same as in August - a still moderately hot 82.6°F (28.1°C). Weather in September »

Weather in October

October, like September, in Rancho Bernardo, California, is another warm autumn month, with average temperature varying between 58.1°F (14.5°C) and 77.4°F (25.2°C). In Rancho Bernardo, the average high-temperature is practically the same as in September - a still warm 77.4°F (25.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another pleasant month in Rancho Bernardo, California, with average temperature ranging between max 71.4°F (21.9°C) and min 53.1°F (11.7°C). In November, the average high-temperature marginally drops, from a moderately hot 77.4°F (25.2°C) in October, to an agreeable 71.4°F (21.9°C). Weather in November »

Weather in December

The first month of the winter, December, is also an enjoyable month in Rancho Bernardo, California, with average temperature ranging between max 63.9°F (17.7°C) and min 47.7°F (8.7°C). With an average high-temperature of 63.9°F (17.7°C) and an average low-temperature of 47.7°F (8.7°C), December is the coldest month. Weather in December »
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FAQ

How much does it rain in Rancho Bernardo?

Throughout the year, in Rancho Bernardo, there are 54.7 rainfall days, and 8.15" (207mm) of precipitation is accumulated.

What is the month with the least sunshine in Rancho Bernardo?

Months with the least sunshine are January and December, with an average of 6.7h of sunshine.

What is the month with the lowest UV index in Rancho Bernardo?

January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index.

What is the rainiest month in Rancho Bernardo?

The month with the most rainfall is February when the rain falls for 6.2 days and typically aggregates up to 1.61" (41mm) of precipitation.

What is the most humid month in Rancho Bernardo?

May is the most humid month, with an average relative humidity of 68%.

What is the driest month in Rancho Bernardo?

The month with the least rainfall in Rancho Bernardo, California, is June when the rain falls for 1.6 days and typically collects 0.08" (2mm) of precipitation.

When are the longest days in Rancho Bernardo?

With an average of 14.3h of daylight, June has the longest days of the year.

What is the month with the highest UV index in Rancho Bernardo?

June through September, with an average maximum UV index of 6, are months with the highest UV index in Rancho Bernardo, California.

What month has the most sunshine in Rancho Bernardo?

The month with the most sunshine is July, with an average of 12h of sunshine.

What is the warmest month in Rancho Bernardo?

August is the warmest month in Rancho Bernardo, California, with an average high-temperature of 84.2°F (29°C) and an average low-temperature of 64.4°F (18°C).

What is the least humid month in Rancho Bernardo?

The least humid month is November, with an average relative humidity of 54%.

What is the coldest month in Rancho Bernardo?

December is the coldest month in Rancho Bernardo, with an average high-temperature of 63.9°F (17.7°C) and an average low-temperature of 47.7°F (8.7°C).

What is the month with the shortest days in Rancho Bernardo?

The month with the shortest days in Rancho Bernardo, California, is December, with an average of 10h of daylight.

Average temperature
Rancho Bernardo, CA

Average temperature - Rancho Bernardo, CA

The warmest month (with the highest average high temperature) is August (84.2°F).
The month with the lowest average high temperature is December (63.9°F).

The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (47.1°F).

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Average pressure
Rancho Bernardo, CA

Average pressure - Rancho Bernardo, CA

The month with the highest atmospheric pressure is January (30.09").
Months with the lowest atmospheric pressure are June and September (29.87").

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Average wind speed
Rancho Bernardo, CA

Average wind speed - Rancho Bernardo, CA

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest months (with the lowest average wind speed) are September and October (4.3mph).

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Average humidity
Rancho Bernardo, CA

Average humidity - Rancho Bernardo, CA

The month with the highest relative humidity is May (68%).
The month with the lowest relative humidity is November (54%).

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Average rainfall
Rancho Bernardo, CA

Average rainfall - Rancho Bernardo, CA

The wettest month (with the highest rainfall) is February (1.61").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days
Rancho Bernardo, CA

Average rainfall days - Rancho Bernardo, CA

The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (1.6 days).

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Average daylight / Average sunshine
Rancho Bernardo, CA

Average daylight / Average sunshine - Rancho Bernardo, CA

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

The month with the most sunshine is July (Average sunshine: 12h).
Months with the least sunshine are January and December (Average sunshine: 6.7).

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Average sunshine days
Rancho Bernardo, CA

Average sunshine days - Rancho Bernardo, CA

The month with the most sunshine days is June (27 days).
The month with the least sunshine days is February (21.2 days).

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Average UV index
Rancho Bernardo, CA

Average UV index - Rancho Bernardo, CA

Months with the highest UV index are June, July, August and September (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 4).

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Average visibility
Rancho Bernardo, CA

Average visibility - Rancho Bernardo, CA

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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