Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
The shift into March uncovers an average high-temperature of a still mild 58.5°F (14.7°C), subtly different from the previous month. The nights of March anticipate an average low-temperature of 48°F (8.9°C).Humidity
In March, the average relative humidity is 76%.Rainfall
In March, the rain falls for 13.3 days. Throughout March, 2.28" (58mm) of precipitation is accumulated. 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 in San Bruno 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, 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 San Bruno, the average sunshine in March is 7.7h.UV index
In San Bruno, the average daily maximum UV index in March is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 4 in March translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for San Bruno in March?
What is the average humidity in March?
How many days does it rain in March?
How many hours of daylight does San Bruno have in March?
When are sunrise and sunset in March?
When does Daylight Saving Time (DST) start in March?
How many hours of sunshine does San Bruno have in March?
What is the UV index intensity in March?
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).
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).
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).
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%).
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").
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).
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).
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).
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).
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).
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).
San Bruno, California, USA
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