Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
On the advent of April, Isla Vista's average high-temperature exhibits a minor adjustment to a still comfortable 66.7°F (19.3°C) from March's 63.1°F (17.3°C). During the month of April, the nighttime temperature falls to an average of 50.4°F (10.2°C).Humidity
The average relative humidity in April is 61%.Rainfall
In April, 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
The month with the coldest seawater is April, with an average ocean temperature of 55.8°F (13.2°C).Note: Entering waters of 55.8°F (13.2°C) is life-endangering. A mere moment in 55.4°F (13°C) waters feels piercing cold, and below 50°F (10°C) it can lead to immediate cold shock and cessation of breathing control, depending on body resilience.
Daylight
The average length of the day in April is 13h and 4min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:20 pm. On the last day of April, sunrise is at 6:09 am and sunset at 7:43 pm PDT.
Sunshine
The average sunshine in April is 11.1h.UV index
In April, the average daily maximum UV index in Isla Vista is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In April, a daily UV index of 5 turns into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How much does it rain in Isla Vista in April?
When is the ocean coldest?
How cold is the water in April in Isla Vista?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index reading in April?
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).
Average pressure in April
Isla Vista, CA
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
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).
Average humidity in April
Isla Vista, CA
- Average humidity in April: 61%
The month with the highest relative humidity is March (64%).
The months with the lowest relative humidity are September, October and November (56%).
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").
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).
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).
Average daylight in April /
Average sunshine in April
Isla Vista, CA
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in April: 11h and 1min
The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 6h and 36min).
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).
Average UV index in April
Isla Vista, 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).
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).
Average visibility in April
Isla Vista, 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).
Isla Vista, California, USA
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