March weather forecast
Foster City, CA

Share

Weather in March

March, the first month of the spring in Foster City, is also a moderate month, with an average temperature fluctuating between 59.2°F (15.1°C) and 47.7°F (8.7°C).

Temperature

March's presence marks an average high-temperature of a still refreshing 59.2°F (15.1°C), subtly varied from February's 57.7°F (14.3°C). Throughout March, Foster City witnesses a nighttime temperature average of 47.7°F (8.7°C).

Humidity

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

Rainfall

In Foster City, during March, the rain falls for 6.8 days and regularly aggregates up to 0.35" (9mm) of precipitation. In Foster City, during the entire year, the rain falls for 32.6 days and collects up to 2.13" (54mm) 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, 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

The average daily maximum UV index in March in Foster City, California, is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 4 in March interprets into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
[Resources]

Frequently asked questions

What is the usual temperature for Foster City in March?

An average high-temperature, in March, in Foster City, is 59.2°F (15.1°C) and the average low-temperature is 47.7°F (8.7°C).

What is the most humid month in Foster City?

The months with the highest humidity are March and August, with an average relative humidity of 76%.

What is the average humidity in March in Foster City?

In March, the average relative humidity in Foster City, California, is 76%.

How much does it rain in Foster City in March?

In Foster City, in March, during 6.8 rainfall days, 0.35" (9mm) of precipitation is typically accumulated.

What is the average length of the day in March in Foster City?

In March, the average day length in Foster City is 11h and 59min.

When are sunrise and sunset in March in Foster City?

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

When does Daylight Saving Time (DST) start in March in Foster City?

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 Foster City?

In March, the average sunshine duration in Foster City, California, is 7.9h.

What is the UV index reading in March in Foster City?

In March, the average daily maximum UV index in Foster City is 4. A UV Index estimate of 3 to 5 represents a medium health risk 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
Foster City, CA

Average temperature in March - Foster City, 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).

[Resources]

Average pressure in March
Foster City, CA

Average pressure in March - Foster City, 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).

[Resources]

Average wind speed in March
Foster City, CA

Average wind speed in March - Foster City, 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).

[Resources]

Average humidity in March
Foster City, CA

Average humidity in March - Foster City, 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%).

[Resources]

Average rainfall in March
Foster City, CA

Average rainfall in March - Foster City, 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").

[Resources]

Average rainfall days in March
Foster City, CA

Average rainfall days in March - Foster City, 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).

[Resources]

Average daylight in March /
Average sunshine in March
Foster City, CA

Average daylight in March / Average sunshine in March - Foster City, 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).

[Resources]

Average sunshine days in March
Foster City, CA

Average sunshine days in March - Foster City, 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).

[Resources]

Average UV index in March
Foster City, CA

Average UV index in March - Foster City, 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).

[Resources]

Average cloud cover in March
Foster City, CA

Average cloud cover in March - Foster City, 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).

[Resources]

Average visibility in March
Foster City, CA

Average visibility in March - Foster City, 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).

[Resources]

Foster City, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location