March weather forecast
San Mateo, CA

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A breathtaking view of the scenic spot of the Devil
A breathtaking view of the scenic spot of the Devil's Slide Sheer Cliff over the pacific Coast in San Mateo, California

Weather in March

The weather in March brings warm temperatures hinting at the imminent arrival of Spring. March boasts an incremental jump in maximum temperatures, measuring at 59.2°F (15.1°C), an improvement over February. Alongside the temperature increase, this month also experiences an uptick in humidity, which can lead to some extra moisture in the air. Those who appreciate mild climates with ample daylight are in their element during March in San Mateo. The added daylight during this month signifies a favorable shift toward the longer sunny days associated with spring.

Temperature

The commencement of March introduces an average high-temperature of a still refreshing 59.2°F (15.1°C), closely mirroring the preceding month. In San Mateo, the average temperature during the nights of March drops to a frosty 47.7°F (8.7°C).

Humidity

March and August, with an average relative humidity of 76%, are the most humid months in San Mateo.

Rainfall

In March, the rain falls for 6.8 days. Throughout March, 0.35" (9mm) of precipitation is accumulated. Throughout the year, in San Mateo, there are 32.6 rainfall days, and 2.13" (54mm) of precipitation is accumulated.

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 Mateo, sunrise is at 6:54 am and sunset at 7:31 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 Mateo, the average sunshine in March is 7.9h.

UV index

The average daily maximum UV index in March is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 4 during March translates into the following directions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

What is the average March temperature in San Mateo?

March temperatures in San Mateo, California, vary between a high-temperature of 59.2°F (15.1°C) and a low-temperature of 47.7°F (8.7°C).

What is the most humid month in San Mateo?

March and August, with an average relative humidity of 76%, are most humid months in San Mateo.

What is the average humidity in March in San Mateo?

In March, the average relative humidity is 76%.

How much does it rain in San Mateo in March?

In March, in San Mateo, the rain falls for 6.8 days. Throughout March, 0.35" (9mm) of precipitation is accumulated.

How many hours of daylight does San Mateo have in March?

In March, the average day length in San Mateo is 11h and 59min.

What time are sunrise and sunset in March in San Mateo?

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 Mateo, California, sunrise is at 6:54 am and sunset at 7:31 pm PDT.

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

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 long on average sun shines in March in San Mateo?

In San Mateo, the average sunshine duration in March is 7.9h.

How high is the UV index in March in San Mateo?

In March, the average daily maximum UV index in San Mateo is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat 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 Mateo, CA

Average temperature in March - San Mateo, CA
  • Average high temperature in March: 59.2°F

The warmest months (with the highest average high temperature) are August and September (71.2°F).
The month with the lowest average high temperature is December (55.8°F).

  • Average low temperature in March: 47.7°F

The month with the highest average low temperature is September (56.7°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).

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Average pressure in March
San Mateo, CA

Average pressure in March - San Mateo, 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 Mateo, CA

Average wind speed in March - San Mateo, CA
  • Average wind speed in March: 7.7mph

The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are August, September and October (5.9mph).

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Average humidity in March
San Mateo, CA

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

The months with the highest relative humidity are March and August (76%).
The months with the lowest relative humidity are October and November (70%).

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Average rainfall in March
San Mateo, CA

Average rainfall in March - San Mateo, CA
  • Average rainfall in March: 0.35"

The wettest month (with the highest rainfall) is February (0.55").
The driest months (with the least rainfall) are June, July and August (0").

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Average rainfall days in March
San Mateo, CA

Average rainfall days in March - San Mateo, CA
  • Average rainfall days in March: 6.8 days

The month with the highest number of rainy days is March (6.8 days).
The month with the least rainy days is July (0.3 days).

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Average daylight in March /
Average sunshine in March
San Mateo, CA

Average daylight in March / Average sunshine in March - San Mateo, 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 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in March
San Mateo, CA

Average sunshine days in March - San Mateo, CA
  • Average sunshine days in March: 23.8 days

The month with the most sunshine days is July (30.4 days).
The month with the least sunshine days is February (23.3 days).

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Average UV index in March
San Mateo, CA

Average UV index in March - San Mateo, 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 and December (UV index 3).

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Average cloud cover in March
San Mateo, CA

Average cloud cover in March - San Mateo, CA
  • Average cloud cover in March: 35

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 11).

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Average visibility in March
San Mateo, CA

Average visibility in March - San Mateo, 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 Mateo, California, USA

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