March weather forecast
San Clemente, CA

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Weather in March

March, the first month of the spring in San Clemente, is also an enjoyable month, with temperature in the range of an average high of 64.8°F (18.2°C) and an average low of 50.5°F (10.3°C).

Temperature

The onset of March manifests an average high-temperature of a still comfortable 64.8°F (18.2°C), demonstrating a minor variation from the preceding month. March brings San Clemente a consistent average low-temperature of 50.5°F (10.3°C).

Humidity

In San Clemente, the average relative humidity in March is 70%.

Rainfall

In San Clemente, California, in March, it is raining for 7.3 days, with typically 0.39" (10mm) of accumulated precipitation. In San Clemente, during the entire year, the rain falls for 51.1 days and collects up to 3.66" (93mm) of precipitation.

Ocean temperature

In San Clemente, the average seawater temperature in March is 59.2°F (15.1°C).
Note: Swimming in 59.2°F (15.1°C) is not an enjoyable experience for most. Breathing becomes progressively more challenging as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

In San Clemente, the average length of the day in March is 12h and 0min.
On the first day of the month, sunrise is at 6:17 am and sunset at 5:47 pm PST. On the last day of March, sunrise is at 6:38 am and sunset at 7:10 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 March, the average sunshine in San Clemente is 8.4h.

UV index

January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 4 in March translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in March?

The high-temperature, in March, in San Clemente, records 64.8°F (18.2°C), while the low-temperature is 50.5°F (10.3°C).

What is the average humidity in March?

The average relative humidity in March is 70%.

How much does it rain in March?

In San Clemente, in March, during 7.3 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

What is the ocean temperature in March?

In March, the average ocean temperature is 59.2°F (15.1°C). Swimming in 59.2°F (15.1°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

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

The average day length in March is 12h and 0min.

When are sunrise and sunset in March?

On the first day of March in San Clemente, sunrise is at 6:17 am and sunset at 5:47 pm PST. On the last day of the month, sunrise is at 6:38 am and sunset at 7:10 pm PDT.

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

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 Clemente, California, the average sunshine duration in March is 8.4h.

What is the month with the lowest UV index?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 4.

What is the UV index intensity in March?

The average daily maximum UV index in March is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
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 Clemente, CA

Average temperature in March - San Clemente, CA
  • Average high temperature in March: 64.8°F

The warmest month (with the highest average high temperature) is September (77.4°F).
The month with the lowest average high temperature is December (62.6°F).

  • Average low temperature in March: 50.5°F

The months with the highest average low temperature are August and September (63.5°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).

Average pressure in March
San Clemente, CA

Average pressure in March - San Clemente, CA
  • Average pressure in March: 30.02"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in March
San Clemente, CA

Average wind speed in March - San Clemente, CA
  • Average wind speed in March: 5.8mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are August and September (4.9mph).

Average humidity in March
San Clemente, CA

Average humidity in March - San Clemente, CA
  • Average humidity in March: 70%

The month with the highest relative humidity is June (75%).
The month with the lowest relative humidity is November (60%).

Average rainfall in March
San Clemente, CA

Average rainfall in March - San Clemente, CA
  • Average rainfall in March: 0.39"

The wettest month (with the highest rainfall) is December (0.71").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in March
San Clemente, CA

Average rainfall days in March - San Clemente, CA
  • Average rainfall days in March: 7.3 days

The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.4 days).

Average sea temperature in March
San Clemente, CA

Average sea temperature in March - San Clemente, CA
  • Average sea temperature in March: 59.3°F

The best month for swimming (with the highest average sea temperature) is August (68.3°F).
The coldest months (with the lowest average sea temperature) are January and February (58.9°F).

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

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in March: 8h and 2min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in March
San Clemente, CA

Average sunshine days in March - San Clemente, CA
  • Average sunshine days in March: 22.3 days

The month with the most sunshine days is October (26 days).
The month with the least sunshine days is February (21.6 days).

Average UV index in March
San Clemente, CA

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

The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).

Average cloud cover in March
San Clemente, CA

Average cloud cover in March - San Clemente, CA
  • Average cloud cover in March: 27

The months with the most cloud cover are March and May (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 11).

Average visibility in March
San Clemente, CA

Average visibility in March - San Clemente, 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).

San Clemente, California, USA

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