April weather forecast and climate
El Cajon, CA

Weather in April

April is a pleasant spring month in El Cajon, California, with average temperature ranging between min 50.7°F (10.4°C) and max 70°F (21.1°C).

Temperature

In El Cajon, the average high-temperature is essentially the same as in March - a pleasant 70°F (21.1°C). In El Cajon, in April, the average low-temperature is 50.7°F (10.4°C).

Humidity

In El Cajon, the average relative humidity is 63%.

Rainfall

In El Cajon, California, during April, the rain falls for 6.7 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 56.1 rainfall days, and 8.27" (210mm) of precipitation is accumulated.

Daylight

In April, the average length of the day in El Cajon is 13h.

Sunshine

In April, the average sunshine is 10.9h.

UV index

The average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV rays for the average person.
Note: In April, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in April in El Cajon?

The average relative humidity in April in El Cajon is 63%.

How much does it rain in El Cajon in April?

In El Cajon, California, in April, it is raining for 6.7 days, with typically 0.63" (16mm) of accumulated precipitation.

What is the average length of the day in April in El Cajon?

In April, the average length of the day in El Cajon, California, is 13h.

How many hours of sunshine does El Cajon have in April?

In El Cajon, California, the average sunshine in April is 10.9h.

What is the UV index intensity in April in El Cajon?

The average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in April
El Cajon, CA

Average temperature in April - El Cajon, CA
  • Average high temperature in April: 70°F

The warmest month (with the highest average high temperature) is August (83.8°F).
The month with the lowest average high temperature is December (63.7°F).

  • Average low temperature in April: 50.7°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (47.8°F).

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Average pressure in April
El Cajon, CA

Average pressure in April - El Cajon, CA
  • Average pressure in April: 29.95"

The month with the highest atmospheric pressure is January (30.09").
Months with the lowest atmospheric pressure are June and September (29.87").

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Average wind speed in April
El Cajon, CA

Average wind speed in April - El Cajon, CA
  • Average wind speed in April: 5.5mph

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is October (4.3mph).

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Average humidity in April
El Cajon, CA

Average humidity in April - El Cajon, CA
  • Average humidity in April: 63%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (53%).

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Average rainfall in April
El Cajon, CA

Average rainfall in April - El Cajon, CA
  • Average rainfall in April: 0.63"

The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in April
El Cajon, CA

Average rainfall days in April - El Cajon, CA
  • Average rainfall days in April: 6.7 days

The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.4 days).

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Average daylight in April /
Average sunshine in April
El Cajon, CA

Average daylight in April / Average sunshine in April - El Cajon, CA
  • Average daylight in April: 13h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in April: 10.9h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in April
El Cajon, CA

Average sunshine days in April - El Cajon, CA
  • Average sunshine days in April: 23.2 days

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (21.9 days).

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Average UV index in April
El Cajon, CA

Average UV index in April - El Cajon, 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, November and December (UV index 4).

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Average cloud cover in April
El Cajon, CA

Average cloud cover in April - El Cajon, CA
  • Average cloud cover in April: 20

Months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).

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Average visibility in April
El Cajon, CA

Average visibility in April - El Cajon, 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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