March weather forecastSan Mateo, CA
March
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 introduction of March sees an average high-temperature of a still moderate 59.2°F (15.1°C), hardly deviating from February. In the month of March, the average temperature dips to a chilly 47.7°F (8.7°C) during the night.Humidity
The months with the highest humidity are March and August, with an average relative humidity of 76%.Rainfall
In March, the rain falls for 6.8 days. Throughout March, 0.35" (9mm) of precipitation is accumulated. In San Mateo, during the entire year, the rain falls for 32.6 days and collects up to 2.13" (54mm) of precipitation.Daylight
In San Mateo, the average length of the day in March 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 6:54 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
The average sunshine in March is 7.9h.UV index
In March, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In March, a daily UV index of 4 turns into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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 54min
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).
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).
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).
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).
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).
