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 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
A slight uplift of average high-temperatures is noted in April, with temperatures adjusting from 74.8°F (23.8°C) in March to a still warm 81.1°F (27.3°C). Irvine's nighttime temperature in April drops to an average of 61.3°F (16.3°C).Heat index
In April, the average heat index is computed to be a tropical 86°F (30°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Note that heat index values are valued for light wind and location in the shade. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
The average relative humidity in April is 73%.Rainfall
In Irvine, in April, during 11.3 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Irvine, during the entire year, the rain falls for 162.6 days and collects up to 24.09" (612mm) of precipitation.Daylight
The average length of the day in April is 12h and 54min.On the first day of April, sunrise is at 7:17 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 8:05 pm EDT.
Sunshine
In April, the average sunshine is 9.2h.UV index
In April, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In April, an average UV index of 6 transforms into the following instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What is the average humidity in April in Irvine?
How much does it rain in April?
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
Irvine, FL
- Average high temperature in April: 81.1°F
The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is January (65.3°F).
- Average low temperature in April: 61.3°F
The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (47.3°F).
Average pressure in April
Irvine, FL
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in April
Irvine, FL
- Average wind speed in April: 6.5mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in April
Irvine, FL
- Average humidity in April: 73%
The months with the highest relative humidity are July, August and September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in April
Irvine, FL
- Average rainfall in April: 1.93"
The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days in April
Irvine, FL
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (7.8 days).
Average daylight in April /
Average sunshine in April
Irvine, FL
- Average daylight in April: 12h and 5min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in April: 9h and 1min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in April
Irvine, FL
- Average sunshine days in April: 17 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in April
Irvine, FL
- Average UV index in April: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in April
Irvine, FL
- Average cloud cover in April: 31
The months with the most cloud cover are February and December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in April
Irvine, FL
- 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).
Irvine, Florida, USA
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