April weather forecast
Irvine, CA

The neon-lit city of Irvine in California, with highway lights and the distant hill ranges and skyscape
The neon-lit city of Irvine in California, with highway lights and the distant hill ranges and skyscape

Weather in April

April in Irvine, California, is an agreeable spring month, with an average temperature ranging between min 54°F (12.2°C) and max 68.4°F (20.2°C).

Temperature

In Irvine, 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 Irvine, is 54°F (12.2°C).

Humidity

In Irvine, the average relative humidity in April is 66%.

Rainfall

In Irvine, during April, the rain falls for 6.8 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, in Irvine, there are 63.7 rainfall days, and 7.91" (201mm) of precipitation is accumulated.

Daylight

In April, the average length of the day is 13h and 3min.
On the first day of April in Irvine, sunrise is at 6:38 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 7:33 pm PDT.

Sunshine

The average sunshine in April in Irvine is 10.9h.

UV index

In Irvine, California, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in April transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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 average humidity in April in Irvine?

The average relative humidity in April in Irvine is 66%.

How many days does it rain in April in Irvine?

In Irvine, California, in April, it is raining for 6.8 days, with typically 0.55" (14mm) of accumulated precipitation.

What is the average length of the day in April in Irvine?

In Irvine, California, the average day length in April is 13h and 3min.

When is the sunrise / sunset in April in Irvine?

In April, on the first day of the month, sunrise is at 6:38 am and sunset at 7:11 pm. On the last day of the month, in Irvine, California, sunrise is at 6:03 am and sunset at 7:33 pm PDT.

How many hours of sunshine does Irvine have in April?

In April, the average sunshine duration in Irvine, California, is 10.9h.

What is the UV index reading in April in Irvine?

The average daily maximum UV index in April in Irvine is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Irvine, CA

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

The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is December (63°F).

  • Average low temperature in April: 54°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (50.5°F).

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Average pressure in April
Irvine, CA

Average pressure in April - Irvine, CA
  • Average pressure in April: 29.96"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in April
Irvine, CA

Average wind speed in April - Irvine, 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 September and October (4.8mph).

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Average humidity in April
Irvine, CA

Average humidity in April - Irvine, CA
  • Average humidity in April: 66%

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
Irvine, CA

Average rainfall in April - Irvine, CA
  • Average rainfall in April: 0.55"

The wettest month (with the highest rainfall) is December (1.54").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in April
Irvine, CA

Average rainfall days in April - Irvine, CA
  • Average rainfall days in April: 6.8 days

The month with the highest number of rainy days is March (7.9 days).
The month with the least rainy days is June (2.2 days).

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Average daylight in April /
Average sunshine in April
Irvine, CA

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

The month with the longest days is June (Average daylight: 14h and 22min).
The month with the shortest days is December (Average daylight: 9h and 58min).

  • Average sunshine in April: 10h and 54min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

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Average sunshine days in April
Irvine, CA

Average sunshine days in April - Irvine, CA
  • Average sunshine days in April: 21.1 days

The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is May (19.7 days).

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Average UV index in April
Irvine, CA

Average UV index in April - Irvine, CA
  • Average UV index in April: 5

The months with the highest UV index are June, 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
Irvine, CA

Average cloud cover in April - Irvine, CA
  • Average cloud cover in April: 21

The month with the most cloud cover is December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in April
Irvine, CA

Average visibility in April - Irvine, 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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