March weather forecast
San Bruno, CA

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Weather in March

March, the first month of the spring in San Bruno, is also a moderate month, with an average temperature ranging between max 58.5°F (14.7°C) and min 48°F (8.9°C).

Temperature

The commencement of March notes an average high-temperature of a still mild 58.5°F (14.7°C), exhibiting little difference from the previous month. In San Bruno, the March nights cool down to an average low of 48°F (8.9°C).

Humidity

In San Bruno, the average relative humidity in March is 76%.

Rainfall

In San Bruno, during March, the rain falls for 13.3 days and regularly aggregates up to 2.28" (58mm) 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

In March, the average length of the day is 11h and 59min.
On the first day of the month, sunrise is at 6:39 am and sunset at 6:03 pm PST. On the last day of March, in San Bruno, sunrise is at 6:55 am and sunset at 7:32 pm PDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from PDT to PST.

Sunshine

In March, the average sunshine is 7.7h.

UV index

In San Bruno, the average daily maximum UV index in March is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In March, an average UV index of 4 transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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Frequently asked questions

What are the temperatures in San Bruno in March?

In San Bruno, 58.5°F (14.7°C) is the average high-temperature and 48°F (8.9°C) is the average low-temperature during March.

What is the average humidity in March in San Bruno?

In San Bruno, the average relative humidity in March is 76%.

How much does it rain in San Bruno in March?

In March, in San Bruno, California, the rain falls for 13.3 days. Throughout March, 2.28" (58mm) of precipitation is accumulated.

What is the average length of the day in March in San Bruno?

The average day length in March in San Bruno, California, is 11h and 59min.

When are sunrise and sunset in March in San Bruno?

In March, on the first day of the month, sunrise is at 6:39 am and sunset at 6:03 pm PST. On the last day of the month, in San Bruno, California, sunrise is at 6:55 am and sunset at 7:32 pm PDT.

When does Daylight Saving Time (DST) start in March in San Bruno?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How many hours of sunshine does San Bruno have in March?

The average sunshine duration in March in San Bruno, California, is 7.7h.

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

The average daily maximum UV index in March in San Bruno, California, is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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 March
San Bruno, CA

Average temperature in March - San Bruno, CA
  • Average high temperature in March: 58.5°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 March: 48°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 March
San Bruno, CA

Average pressure in March - San Bruno, CA
  • Average pressure in March: 30.07"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 March
San Bruno, CA

Average wind speed in March - San Bruno, CA
  • Average wind speed in March: 8.1mph

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 March
San Bruno, CA

Average humidity in March - San Bruno, CA
  • Average humidity in March: 76%

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 March
San Bruno, CA

Average rainfall in March - San Bruno, CA
  • Average rainfall in March: 2.28"

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 March
San Bruno, CA

Average rainfall days in March - San Bruno, CA
  • Average rainfall days in March: 13.3 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 March /
Average sunshine in March
San Bruno, CA

Average daylight in March / Average sunshine in March - San Bruno, CA
  • Average daylight in March: 12h and 0min

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 March: 7h and 4min

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 March
San Bruno, CA

Average sunshine days in March - San Bruno, CA
  • Average sunshine days in March: 16.3 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 March
San Bruno, CA

Average UV index in March - San Bruno, CA
  • Average UV index in March: 4

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 March
San Bruno, CA

Average cloud cover in March - San Bruno, CA
  • Average cloud cover in March: 37

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 March
San Bruno, CA

Average visibility in March - San Bruno, CA
  • Average visibility in March: 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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