May weather forecast
Rancho Bernardo, CA

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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 low of 52.5°F (11.4°C) and an average high of 71.6°F (22°C).

Temperature

May's onset records a minor alteration in the average high-temperature to a still pleasant 71.6°F (22°C) from April's 70.2°F (21.2°C). In May, the recorded average low-temperature is a fresh 52.5°F (11.4°C).

Humidity

With an average relative humidity of 68%, May is the most humid month in Rancho Bernardo.

Rainfall

In Rancho Bernardo, in May, during 4 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. In Rancho Bernardo, during the entire year, the rain falls for 54.7 days and collects up to 8.15" (207mm) of precipitation.

Daylight

The average length of the day in May in Rancho Bernardo, California, is 13h and 53min.
On the first day of the month, sunrise is at 5:59 am and sunset at 7:30 pm. On the last day of May, sunrise is at 5:40 am and sunset at 7:51 pm PDT.

Sunshine

In May, the average sunshine is 10.9h.

UV index

In Rancho Bernardo, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Take precautions - Protection against skin and eye damage is obliged. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What is the temperature in May in Rancho Bernardo?

In Rancho Bernardo, in May, the average high-temperature is 71.6°F (22°C), and the average low-temperature is 52.5°F (11.4°C).

What is the most humid month in Rancho Bernardo?

With an average relative humidity of 68%, May is the most humid month in Rancho Bernardo.

What is the average humidity in May in Rancho Bernardo?

In Rancho Bernardo, the average relative humidity in May is 68%.

How much does it rain in Rancho Bernardo in May?

In Rancho Bernardo, California, in May, it is raining for 4 days, with typically 0.35" (9mm) of accumulated precipitation.

What is the average length of the day in May in Rancho Bernardo?

The average day length in May in Rancho Bernardo is 13h and 53min.

When is the sunrise / sunset in May in Rancho Bernardo?

On the first day of May in Rancho Bernardo, California, sunrise is at 5:59 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 7:51 pm PDT.

How long on average sun shines in May in Rancho Bernardo?

The average sunshine duration in May in Rancho Bernardo, California, is 10.9h.

How high is the UV index in May in Rancho Bernardo?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Rancho Bernardo, CA

Average temperature in May - Rancho Bernardo, CA
  • Average high temperature in May: 71.6°F

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).

  • Average low temperature in May: 52.5°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 in May
Rancho Bernardo, CA

Average pressure in May - Rancho Bernardo, CA
  • Average pressure in May: 29.91"Hg

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

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Average wind speed in May
Rancho Bernardo, CA

Average wind speed in May - Rancho Bernardo, CA
  • Average wind speed in May: 5.3mph

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 in May
Rancho Bernardo, CA

Average humidity in May - Rancho Bernardo, CA
  • Average humidity in May: 68%

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 in May
Rancho Bernardo, CA

Average rainfall in May - Rancho Bernardo, CA
  • Average rainfall in May: 0.35"

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 in May
Rancho Bernardo, CA

Average rainfall days in May - Rancho Bernardo, CA
  • Average rainfall days in May: 4 days

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 in May /
Average sunshine in May
Rancho Bernardo, CA

Average daylight in May / Average sunshine in May - Rancho Bernardo, CA
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 10h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).

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Average sunshine days in May
Rancho Bernardo, CA

Average sunshine days in May - Rancho Bernardo, CA
  • Average sunshine days in May: 24.5 days

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 in May
Rancho Bernardo, CA

Average UV index in May - Rancho Bernardo, CA
  • Average UV index in May: 5

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

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Average cloud cover in May
Rancho Bernardo, CA

Average cloud cover in May - Rancho Bernardo, CA
  • Average cloud cover in May: 20

The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in May
Rancho Bernardo, CA

Average visibility in May - Rancho Bernardo, CA
  • Average visibility in May: 6mi

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

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Rancho Bernardo, California, USA

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