March weather forecast
San Quentin, CA

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Weather in March

March, the first month of the spring in San Quentin, is also a moderate month, with an average temperature varying between 46.9°F (8.3°C) and 59.4°F (15.2°C).

Temperature

The onset of March brings an average high-temperature of a still mild 59.4°F (15.2°C), nearly matching the February temperature. San Quentin temperatures generally rest at a low of 46.9°F (8.3°C) during the March nights.

Humidity

March is the most humid month in San Quentin, with an average relative humidity of 77%.

Rainfall

In March, in San Quentin, the rain falls for 8.8 days. Throughout March, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 48 rainfall days, and 3.94" (100mm) of precipitation is accumulated.

Daylight

The average length of the day in March in San Quentin is 11h and 59min.
On the first day of the month, sunrise is at 6:40 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

The average sunshine in March in San Quentin is 7.5h.

UV index

The average daily maximum UV index in March is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 4 during March translates into the following guidance:
Take necessary precautions - Defending against sun damage is advocated. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What are March temperatures in San Quentin?

During March, San Quentin experiences an average high-temperature of 59.4°F (15.2°C) and a low-temperature of 46.9°F (8.3°C).

What is the most humid month in San Quentin?

The most humid month in San Quentin is March, with an average relative humidity of 77%.

What is the average humidity in March in San Quentin?

In San Quentin, California, the average relative humidity in March is 77%.

How many days does it rain in March in San Quentin?

In San Quentin, California, in March, during 8.8 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

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

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

When are sunrise and sunset in March in San Quentin?

In March, on the first day of the month, sunrise is at 6:40 am and sunset at 6:03 pm PST. On the last day of the month, sunrise is at 6:55 am and sunset at 7:32 pm PDT.

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

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 Quentin?

The average sunshine duration in March in San Quentin is 7.5h.

What is the UV index reading in March in San Quentin?

In March, the average daily maximum UV index in San Quentin is 4. A UV Index 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 Quentin, CA

Average temperature in March - San Quentin, CA
  • Average high temperature in March: 59.4°F

The warmest month (with the highest average high temperature) is September (72.3°F).
The month with the lowest average high temperature is December (55.4°F).

  • Average low temperature in March: 46.9°F

The month with the highest average low temperature is September (56.1°F).
The coldest month (with the lowest average low temperature) is December (45.3°F).

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Average pressure in March
San Quentin, CA

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

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Average wind speed in March
San Quentin, CA

Average wind speed in March - San Quentin, CA
  • Average wind speed in March: 7.3mph

The windiest month (with the highest average wind speed) is May (7.8mph).
The calmest months (with the lowest average wind speed) are October and November (5.5mph).

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Average humidity in March
San Quentin, CA

Average humidity in March - San Quentin, CA
  • Average humidity in March: 77%

The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in March
San Quentin, CA

Average rainfall in March - San Quentin, CA
  • Average rainfall in March: 0.59"

The wettest month (with the highest rainfall) is February (0.87").
The driest months (with the least rainfall) are June, July, August and September (0.04").

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Average rainfall days in March
San Quentin, CA

Average rainfall days in March - San Quentin, CA
  • Average rainfall days in March: 8.8 days

The month with the highest number of rainy days is March (8.8 days).
The months with the least rainy days are June and August (1.2 days).

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in March: 7h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in March
San Quentin, CA

Average sunshine days in March - San Quentin, CA
  • Average sunshine days in March: 20.7 days

The month with the most sunshine days is June (26.4 days).
The month with the least sunshine days is March (20.7 days).

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Average UV index in March
San Quentin, CA

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

The months with the highest UV index are April, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in March
San Quentin, CA

Average cloud cover in March - San Quentin, CA
  • Average cloud cover in March: 39

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 19).

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Average visibility in March
San Quentin, CA

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

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