April weather forecast and climate
Aliso Viejo, CA

Weather in April

April is a pleasant spring month in Aliso Viejo, California, with average temperature ranging between max 68.4°F (20.2°C) and min 53.1°F (11.7°C).

Temperature

In Aliso Viejo, the average high-temperature in April is almost the same as in March - a pleasant 68.4°F (20.2°C). The average low-temperature, in Aliso Viejo, is 53.1°F (11.7°C).

Humidity

In Aliso Viejo, California, the average relative humidity is 67%.

Rainfall

In April, in Aliso Viejo, California, the rain falls for 6.6 days. Throughout April, 0.39" (10mm) of precipitation is accumulated. Throughout the year, there are 66.3 rainfall days, and 5.67" (144mm) of precipitation is accumulated.

Daylight

The average length of the day in April is 13.1h.

Sunshine

In April, the average sunshine is 10.8h.

UV index

In Aliso Viejo, California, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in April in Aliso Viejo?

In April, the average high-temperature is 68.4°F (20.2°C), and the average low-temperature is 53.1°F (11.7°C).

What is the average humidity in April in Aliso Viejo?

The average relative humidity in April is 67%.

How many days does it rain in April in Aliso Viejo?

In April, in Aliso Viejo, California, the rain falls for 6.6 days. Throughout April, 0.39" (10mm) of precipitation is accumulated.

How many hours of daylight does Aliso Viejo have in April?

The average length of the day in April in Aliso Viejo, California, is 13.1h.

How long on average sun shines in April in Aliso Viejo?

In April, the average sunshine is 10.8h.

How high is the UV index in April in Aliso Viejo?

In Aliso Viejo, California, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in April
Aliso Viejo, CA

Average temperature in April - Aliso Viejo, CA
  • Average high temperature in April: 68.4°F

The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in April: 53.1°F

The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).

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Average pressure in April
Aliso Viejo, CA

Average pressure in April - Aliso Viejo, CA
  • Average pressure in April: 29.96"

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

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Average wind speed in April
Aliso Viejo, CA

Average wind speed in April - Aliso Viejo, CA
  • Average wind speed in April: 5.9mph

The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are August, September and October (4.7mph).

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Average humidity in April
Aliso Viejo, CA

Average humidity in April - Aliso Viejo, CA
  • Average humidity in April: 67%

The month with the highest relative humidity is June (71%).
The month with the lowest relative humidity is November (56%).

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Average rainfall in April
Aliso Viejo, CA

Average rainfall in April - Aliso Viejo, CA
  • Average rainfall in April: 0.39"

The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in April
Aliso Viejo, CA

Average rainfall days in April - Aliso Viejo, CA
  • Average rainfall days in April: 6.6 days

The month with the highest number of rainy days is March (8.3 days).
The month with the least rainy days is June (2.6 days).

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Average daylight in April /
Average sunshine in April
Aliso Viejo, CA

Average daylight in April / Average sunshine in April - Aliso Viejo, CA
  • Average daylight in April: 13.1h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in April: 10.8h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6.6h).

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Average sunshine days in April
Aliso Viejo, CA

Average sunshine days in April - Aliso Viejo, CA
  • Average sunshine days in April: 20.3 days

The month with the most sunshine days is January (24.1 days).
The month with the least sunshine days is February (19.6 days).

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Average UV index in April
Aliso Viejo, CA

Average UV index in April - Aliso Viejo, CA
  • Average UV index in April: 5

Months with the highest UV index are June, July, August and September (UV index 6).
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
Aliso Viejo, CA

Average cloud cover in April - Aliso Viejo, CA
  • Average cloud cover in April: 22

Months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in April
Aliso Viejo, CA

Average visibility in April - Aliso Viejo, CA
  • Average visibility in April: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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