April weather forecast and climate
Isla Vista, CA

Weather in April

April, like March, in Isla Vista, California, is another comfortable spring month, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 50.4°F (10.2°C).

Temperature

In Isla Vista, the average high-temperature is almost the same as in March - a still enjoyable 66.7°F (19.3°C). In Isla Vista, California, the average low-temperature is 50.4°F (10.2°C).

Humidity

In Isla Vista, the average relative humidity in April is 61%.

Rainfall

In April, in Isla Vista, California, the rain falls for 4.7 days. Throughout April, 0.55" (14mm) of precipitation is accumulated. Throughout the year, there are 43.7 rainfall days, and 7.68" (195mm) of precipitation is accumulated.

Ocean temperature

With an average ocean temperature of 55.8°F (13.2°C), April is the month with the coldest seawater in Isla Vista.
Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

Daylight

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

Sunshine

In Isla Vista, the average sunshine is 11.1h.

UV index

In Isla Vista, California, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays 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. 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 temperature in April in Isla Vista?

The average high-temperature, in April, in Isla Vista, is 66.7°F (19.3°C), while the average low-temperature is 50.4°F (10.2°C).

What is the average humidity in April in Isla Vista?

In April, the average relative humidity is 61%.

How much does it rain in Isla Vista in April?

In April, in Isla Vista, the rain falls for 4.7 days. Throughout April, 0.55" (14mm) of precipitation is accumulated.

When is the ocean coldest in Isla Vista?

April is the month with the coldest seawater, with an average ocean temperature of 55.8°F (13.2°C).

What is the water temperature in April in Isla Vista?

In Isla Vista, California, in April, the average water temperature is 55.8°F (13.2°C). Swimming in 55.8°F (13.2°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Isla Vista have in April?

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

How long on average sun shines in April in Isla Vista?

In April, the average sunshine in Isla Vista, California, is 11.1h.

How high is the UV index in April in Isla Vista?

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

Average temperature in April
Isla Vista, CA

Average temperature in April - Isla Vista, CA
  • Average high temperature in April: 66.7°F

The warmest month (with the highest average high temperature) is August (79.2°F).
The month with the lowest average high temperature is December (60.6°F).

  • Average low temperature in April: 50.4°F

The month with the highest average low temperature is August (62.1°F).
The coldest month (with the lowest average low temperature) is February (47.7°F).

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Average pressure in April
Isla Vista, CA

Average pressure in April - Isla Vista, CA
  • Average pressure in April: 30"

The month with the highest atmospheric pressure is January (30.11").
Months with the lowest atmospheric pressure are June, August and September (29.91").

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Average wind speed in April
Isla Vista, CA

Average wind speed in April - Isla Vista, CA
  • Average wind speed in April: 8.1mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).

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Average humidity in April
Isla Vista, CA

Average humidity in April - Isla Vista, CA
  • Average humidity in April: 61%

The month with the highest relative humidity is March (64%).
Months with the lowest relative humidity are September, October and November (56%).

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Average rainfall in April
Isla Vista, CA

Average rainfall in April - Isla Vista, CA
  • Average rainfall in April: 0.55"

The wettest month (with the highest rainfall) is January (1.57").
The driest months (with the least rainfall) are June and August (0.08").

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Average rainfall days in April
Isla Vista, CA

Average rainfall days in April - Isla Vista, CA
  • Average rainfall days in April: 4.7 days

The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.2 days).

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Average sea temperature in April
Isla Vista, CA

Average sea temperature in April - Isla Vista, CA
  • Average sea temperature in April: 55.7°F

The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is April (55.7°F).

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Average daylight in April /
Average sunshine in April
Isla Vista, CA

Average daylight in April / Average sunshine in April - Isla Vista, 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: 9.9h).

  • Average sunshine in April: 11.1h

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

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Average sunshine days in April
Isla Vista, CA

Average sunshine days in April - Isla Vista, CA
  • Average sunshine days in April: 25.2 days

The month with the most sunshine days is August (28 days).
The month with the least sunshine days is February (21.6 days).

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Average UV index in April
Isla Vista, CA

Average UV index in April - Isla Vista, 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
Isla Vista, CA

Average cloud cover in April - Isla Vista, CA
  • Average cloud cover in April: 16

The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in April
Isla Vista, CA

Average visibility in April - Isla Vista, 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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