April weather forecast
San Clemente, CA

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Weather in April

April, like March, in San Clemente, California, is another refreshing spring month, with temperature in the range of an average high of 66.6°F (19.2°C) and an average low of 52.7°F (11.5°C).

Temperature

In April, San Clemente notes an average high-temperature of a still comfortable 66.6°F (19.2°C), hardly different from the preceding month. San Clemente observes an average low-temperature of 52.7°F (11.5°C) during April nights.

Humidity

The average relative humidity in April in San Clemente is 70%.

Rainfall

In April, in San Clemente, the rain falls for 5.8 days. Throughout April, 0.31" (8mm) of precipitation is accumulated. Throughout the year, in San Clemente, there are 51.1 rainfall days, and 3.66" (93mm) of precipitation is accumulated.

Ocean temperature

In San Clemente, in April, the average water temperature is 60.4°F (15.8°C).
Note: For the majority of people, swimming in water at 60.4°F (15.8°C) is not enjoyable. The challenge of controlling breathing escalates as the temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

The average length of the day in April is 13h and 2min.
On the first day of April, sunrise is at 6:36 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:32 pm PDT.

Sunshine

In April, the average sunshine is 10.5h.

UV index

The average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index, 5 in April, converts into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

What is the temperature in April in San Clemente?

The high-temperature, in April, in San Clemente, is 66.6°F (19.2°C), while the low-temperature averages to 52.7°F (11.5°C).

What is the average humidity in April in San Clemente?

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

How many days does it rain in April in San Clemente?

In San Clemente, California, in April, during 5.8 rainfall days, 0.31" (8mm) of precipitation is typically accumulated.

What is the ocean temperature in April in San Clemente?

In San Clemente, California, in April, the average water temperature is 60.4°F (15.8°C). For swimming, a surface water temperature of 60.4°F (15.8°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the average length of the day in April in San Clemente?

The average day length in April is 13h and 2min.

What time are sunrise and sunset in April in San Clemente?

In April, on the first day of the month, sunrise is at 6:36 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:32 pm PDT.

How many hours of sunshine does San Clemente have in April?

The average sunshine duration in April is 10.5h.

What is the UV index reading in April in San Clemente?

In San Clemente, the average daily maximum UV index in April is 5. A UV Index value 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 April
San Clemente, CA

Average temperature in April - San Clemente, CA
  • Average high temperature in April: 66.6°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 April: 52.7°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).

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Average pressure in April
San Clemente, CA

Average pressure in April - San Clemente, CA
  • Average pressure in April: 29.96"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).

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Average wind speed in April
San Clemente, CA

Average wind speed in April - San Clemente, CA
  • Average wind speed in April: 6.2mph

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).

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Average humidity in April
San Clemente, CA

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

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

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Average rainfall in April
San Clemente, CA

Average rainfall in April - San Clemente, CA
  • Average rainfall in April: 0.31"

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

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Average rainfall days in April
San Clemente, CA

Average rainfall days in April - San Clemente, CA
  • Average rainfall days in April: 5.8 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).

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Average sea temperature in April
San Clemente, CA

Average sea temperature in April - San Clemente, CA
  • Average sea temperature in April: 60.4°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).

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

Average daylight in April / Average sunshine in April - San Clemente, CA
  • Average daylight in April: 13h 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 April: 10h and 3min

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).

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Average sunshine days in April
San Clemente, CA

Average sunshine days in April - San Clemente, CA
  • Average sunshine days in April: 22.8 days

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

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Average UV index in April
San Clemente, CA

Average UV index in April - San Clemente, CA
  • Average UV index in April: 5

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).

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Average cloud cover in April
San Clemente, CA

Average cloud cover in April - San Clemente, CA
  • Average cloud cover in April: 25

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).

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Average visibility in April
San Clemente, CA

Average visibility in April - San Clemente, CA
  • Average visibility in April: 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 Clemente, California, USA

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