April weather forecast
San Juan Capistrano, CA

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Weather in April

April, like March, in San Juan Capistrano, California, is another enjoyable spring month, with an average temperature varying between 66.4°F (19.1°C) and 52.9°F (11.6°C).

Temperature

San Juan Capistrano, California, experiences a subtle adjustment in high-temperatures to a still comfortable 66.4°F (19.1°C) with the onset of April, maintaining near parity with March's 64.8°F (18.2°C). An average low-temperature of 52.9°F (11.6°C) is noted during the nights in April in San Juan Capistrano.

Humidity

In April, the average relative humidity is 70%.

Rainfall

In San Juan Capistrano, in April, during 7.1 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, in San Juan Capistrano, there are 69 rainfall days, and 9.09" (231mm) of precipitation is accumulated.

Daylight

In April, the average length of the day in San Juan Capistrano is 13h and 2min.
On the first day of April in San Juan Capistrano, 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 7:33 pm PDT.

Sunshine

The average sunshine in April in San Juan Capistrano is 10.5h.

UV index

In April, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in April converts into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What is the usual temperature for San Juan Capistrano in April?

The average high-temperature and low-temperature in San Juan Capistrano during April are 66.4°F (19.1°C) and 52.9°F (11.6°C) respectively.

What is the average humidity in April in San Juan Capistrano?

In April, the average relative humidity in San Juan Capistrano is 70%.

How many days does it rain in April in San Juan Capistrano?

In San Juan Capistrano, California, in April, during 7.1 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

What is the average length of the day in April in San Juan Capistrano?

In April, the average day length in San Juan Capistrano is 13h and 2min.

When are sunrise and sunset in April in San Juan Capistrano?

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, in San Juan Capistrano, sunrise is at 6:02 am and sunset at 7:33 pm PDT.

How long on average sun shines in April in San Juan Capistrano?

In San Juan Capistrano, the average sunshine duration in April is 10.5h.

What is the UV index reading in April in San Juan Capistrano?

In April, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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 April
San Juan Capistrano, CA

Average temperature in April - San Juan Capistrano, CA
  • Average high temperature in April: 66.4°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 (62.4°F).

  • Average low temperature in April: 52.9°F

The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is February (50°F).

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Average pressure in April
San Juan Capistrano, CA

Average pressure in April - San Juan Capistrano, 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 Juan Capistrano, CA

Average wind speed in April - San Juan Capistrano, CA
  • Average wind speed in April: 6.3mph

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are August, September and October (5mph).

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Average humidity in April
San Juan Capistrano, CA

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

The month with the highest relative humidity is June (74%).
The month with the lowest relative humidity is November (59%).

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Average rainfall in April
San Juan Capistrano, CA

Average rainfall in April - San Juan Capistrano, CA
  • Average rainfall in April: 0.55"

The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in April
San Juan Capistrano, CA

Average rainfall days in April - San Juan Capistrano, CA
  • Average rainfall days in April: 7.1 days

The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (3 days).

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Average daylight in April /
Average sunshine in April
San Juan Capistrano, CA

Average daylight in April / Average sunshine in April - San Juan Capistrano, 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 month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days in April
San Juan Capistrano, CA

Average sunshine days in April - San Juan Capistrano, CA
  • Average sunshine days in April: 21.6 days

The month with the most sunshine days is January (24.7 days).
The month with the least sunshine days is May (19.5 days).

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Average UV index in April
San Juan Capistrano, CA

Average UV index in April - San Juan Capistrano, 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 Juan Capistrano, CA

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

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

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Average visibility in April
San Juan Capistrano, CA

Average visibility in April - San Juan Capistrano, 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 Juan Capistrano, California, USA

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