March weather forecast
Sonoma, CA

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Neat rows of vines in a vineyard farm in Sonoma, California
Neat rows of vines in a vineyard farm in Sonoma, California

Weather in March

The arrival of March in Sonoma brings a sure sign that spring is on the horizon. With longer, warmer days than February, the true spirit of spring gradually begins to unfurl across the city. An uptick in relative humidity is noticeable, creating an overall fresh feel. As Sonoma prepares to bid farewell to the winter, the weather in March presents a comfortable mixture of cool spring breezes, sunshine, and moderate levels of rainfall. Despite an increase in rain days, the amount of rainfall diminishes from the February level.

Temperature

Transitioning into March, Sonoma experiences an average high-temperature of an enjoyable 61.3°F (16.3°C), marking a minor shift from the preceding month. Sonoma registers a consistent average low-temperature of 43°F (6.1°C) during March.

Humidity

March is the most humid month, with an average relative humidity of 76%.

Rainfall

In Sonoma, in March, it is raining for 13.4 days, with typically 2.48" (63mm) of accumulated precipitation. Throughout the year, in Sonoma, there are 73.3 rainfall days, and 15.47" (393mm) of precipitation is accumulated.

Daylight

In March, the average length of the day in Sonoma is 11h and 59min.
On the first day of March, sunrise is at 6:40 am and sunset at 6:03 pm PST. On the last day of the month, sunrise is at 6:54 am and sunset at 7:32 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 is 7.4h.

UV index

In March, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 in March interprets into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What is the temperature in March in Sonoma?

The average high-temperature and low-temperature in Sonoma during March are 61.3°F (16.3°C) and 43°F (6.1°C) respectively.

What is the most humid month in Sonoma?

With an average relative humidity of 76%, March is the most humid month in Sonoma, California.

What is the average humidity in March in Sonoma?

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

How many days does it rain in March in Sonoma?

In March, the rain falls for 13.4 days. Throughout March, 2.48" (63mm) of precipitation is accumulated.

How many hours of daylight does Sonoma have in March?

In Sonoma, California, the average day length in March is 11h and 59min.

When are sunrise and sunset in March in Sonoma?

On the first day of March in Sonoma, California, sunrise is at 6:40 am and sunset at 6:03 pm PST. On the last day of the month, sunrise is at 6:54 am and sunset at 7:32 pm PDT.

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Sonoma, California, 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 Sonoma?

The average sunshine duration in March in Sonoma is 7.4h.

How high is the UV index in March in Sonoma?

In March, the average daily maximum UV index in Sonoma, California, is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Sonoma, CA

Average temperature in March - Sonoma, CA
  • Average high temperature in March: 61.3°F

The warmest month (with the highest average high temperature) is August (82.9°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in March: 43°F

The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

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Average pressure in March
Sonoma, CA

Average pressure in March - Sonoma, 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 June (29.91"Hg).

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Average wind speed in March
Sonoma, CA

Average wind speed in March - Sonoma, CA
  • Average wind speed in March: 5.7mph

The windiest month (with the highest average wind speed) is May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.4mph).

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Average humidity in March
Sonoma, CA

Average humidity in March - Sonoma, CA
  • Average humidity in March: 76%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (59%).

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Average rainfall in March
Sonoma, CA

Average rainfall in March - Sonoma, CA
  • Average rainfall in March: 2.48"

The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in March
Sonoma, CA

Average rainfall days in March - Sonoma, CA
  • Average rainfall days in March: 13.4 days

The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (0.8 days).

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Average daylight in March /
Average sunshine in March
Sonoma, CA

Average daylight in March / Average sunshine in March - Sonoma, 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 2min

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 36min).

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Average sunshine days in March
Sonoma, CA

Average sunshine days in March - Sonoma, CA
  • Average sunshine days in March: 16.1 days

The month with the most sunshine days is July (28.7 days).
The month with the least sunshine days is March (16.1 days).

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Average UV index in March
Sonoma, CA

Average UV index in March - Sonoma, CA
  • Average UV index in March: 4

The months with the highest UV index are June and July (UV index 6).
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
Sonoma, CA

Average cloud cover in March - Sonoma, CA
  • Average cloud cover in March: 40

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 8).

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Average visibility in March
Sonoma, CA

Average visibility in March - Sonoma, 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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Sonoma, California, USA

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