April weather forecast
San Juan Capistrano, CA

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Weather in April

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

Temperature

As San Juan Capistrano, California, steps into April, the average high-temperature holds at a still refreshing 66.4°F (19.1°C), hinting at a minor fluctuation from the prior month. The average temperature during April nights dips to a cool 52.9°F (11.6°C).

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

The average length of the day in April is 13h and 2min.
On the first day of the month, sunrise is at 6:36 am and sunset at 7:11 pm. On the last day of April, sunrise is at 6:02 am and sunset at 7:33 pm PDT.

Sunshine

In April, the average sunshine is 10.5h.

UV index

In San Juan Capistrano, the average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 5 during April translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Frequently asked questions

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

San Juan Capistrano in April has an average high-temperature of 66.4°F (19.1°C) and an average low-temperature of 52.9°F (11.6°C).

What is the average humidity in April?

The average relative humidity in April is 70%.

How much does it rain in April?

In San Juan Capistrano, California, during April, the rain falls for 7.1 days and regularly aggregates up to 0.55" (14mm) of precipitation.

What is the average length of the day in April?

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

When is the sunrise / sunset in April?

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 7:33 pm PDT.

How many hours of sunshine does San Juan Capistrano have in April?

The average sunshine duration in April is 10.5h.

How high is the UV index in April?

In April, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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).

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).

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).

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%).

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").

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).

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).

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).

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).

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).

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).

San Juan Capistrano, California, USA

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