June weather forecast
San Bruno, CA

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Weather in June

June, the first month of the summer in San Bruno, is also an enjoyable month, with an average temperature varying between 53.8°F (12.1°C) and 67.3°F (19.6°C).

Temperature

San Bruno's average high-temperature in June sits at a still refreshing 67.3°F (19.6°C), showing little difference from the previous month. During June, the average low-temperature in San Bruno is a cool 53.8°F (12.1°C).

Humidity

In June, the average relative humidity in San Bruno, California, is 75%.

Rainfall

In San Bruno, California, during June, the rain falls for 2.5 days and regularly aggregates up to 0.12" (3mm) of precipitation. In San Bruno, during the entire year, the rain falls for 81.8 days and collects up to 13.46" (342mm) of precipitation.

Daylight

June has the longest days of the year, with an average of 14h and 42min of daylight.
On the first day of the month, sunrise is at 5:49 am and sunset at 8:25 pm. On the last day of June, sunrise is at 5:51 am and sunset at 8:35 pm PDT.

Sunshine

In June, the average sunshine in San Bruno is 11.5h.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 in June interprets into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

What is the average June temperature in San Bruno?

San Bruno in June has an average high-temperature of 67.3°F (19.6°C) and an average low-temperature of 53.8°F (12.1°C).

What is the average humidity in June in San Bruno?

In June, the average relative humidity in San Bruno, California, is 75%.

How much does it rain in San Bruno in June?

In San Bruno, in June, it is raining for 2.5 days, with typically 0.12" (3mm) of accumulated precipitation.

When are the longest days in San Bruno?

The month with the longest days in San Bruno is June, with an average of 14h and 42min of daylight.

How many hours of daylight does San Bruno have in June?

In San Bruno, the average day length in June is 14h and 43min.

When is the sunrise / sunset in June in San Bruno?

In June, on the first day of the month, sunrise is at 5:49 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:35 pm PDT.

How long on average sun shines in June in San Bruno?

The average sunshine duration in June in San Bruno, California, is 11.5h.

What are the months with the highest UV index in San Bruno?

June through September, with an average maximum UV index of 5, are months with the highest UV index in San Bruno.

What is the UV index intensity in June in San Bruno?

In San Bruno, the average daily maximum UV index in June is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
San Bruno, CA

Average temperature in June - San Bruno, CA
  • Average high temperature in June: 67.3°F

The warmest month (with the highest average high temperature) is September (69.8°F).
The month with the lowest average high temperature is December (55.8°F).

  • Average low temperature in June: 53.8°F

The month with the highest average low temperature is September (56.5°F).
The coldest month (with the lowest average low temperature) is December (47.7°F).

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Average pressure in June
San Bruno, CA

Average pressure in June - San Bruno, CA
  • Average pressure in June: 29.93"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).

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Average wind speed in June
San Bruno, CA

Average wind speed in June - San Bruno, CA
  • Average wind speed in June: 7.7mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest months (with the lowest average wind speed) are August and September (6.3mph).

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Average humidity in June
San Bruno, CA

Average humidity in June - San Bruno, CA
  • Average humidity in June: 75%

The month with the highest relative humidity is August (79%).
The months with the lowest relative humidity are October and November (71%).

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Average rainfall in June
San Bruno, CA

Average rainfall in June - San Bruno, CA
  • Average rainfall in June: 0.12"

The wettest month (with the highest rainfall) is February (2.72").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in June
San Bruno, CA

Average rainfall days in June - San Bruno, CA
  • Average rainfall days in June: 2.5 days

The month with the highest number of rainy days is March (13.3 days).
The months with the least rainy days are July and August (2.2 days).

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Average daylight in June /
Average sunshine in June
San Bruno, CA

Average daylight in June / Average sunshine in June - San Bruno, CA
  • Average daylight in June: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in June: 11h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in June
San Bruno, CA

Average sunshine days in June - San Bruno, CA
  • Average sunshine days in June: 25.5 days

The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is March (16.3 days).

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Average UV index in June
San Bruno, CA

Average UV index in June - San Bruno, CA
  • Average UV index in June: 5

The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).

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Average cloud cover in June
San Bruno, CA

Average cloud cover in June - San Bruno, CA
  • Average cloud cover in June: 19

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 16).

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Average visibility in June
San Bruno, CA

Average visibility in June - San Bruno, CA
  • Average visibility in June: 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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San Bruno, California, USA

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