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
April's commencement is accompanied by an average high-temperature of a still warm 75.6°F (24.2°C), diverging marginally from March's 74.3°F (23.5°C). Nights during April maintain a steady temperature, averaging at a pleasant 72.1°F (22.3°C).Humidity
In April, the average relative humidity is 75%.Rainfall
In Wailuku, in April, it is raining for 8.1 days, with typically 0.63" (16mm) of accumulated precipitation. In Wailuku, during the entire year, the rain falls for 103.4 days and collects up to 6.57" (167mm) of precipitation.Daylight
In April, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 6:18 am and sunset at 6:40 pm. On the last day of April, sunrise is at 5:55 am and sunset at 6:50 pm HST.
Sunshine
The average sunshine in April is 9.2h.UV index
January through June, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Wailuku. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 6 during April translates into these guidelines:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
How many days does it rain in April?
How many hours of daylight does Wailuku have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Wailuku have in April?
What are the months with the lowest UV index?
How high is the UV index in April in Wailuku?
Average temperature in April
Wailuku, HI
- Average high temperature in April: 75.6°F
The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).
- Average low temperature in April: 72.1°F
The month with the highest average low temperature is October (76.5°F).
The coldest months (with the lowest average low temperature) are February and March (70.7°F).
Average pressure in April
Wailuku, HI
- Average pressure in April: 30.05"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in April
Wailuku, HI
- Average wind speed in April: 12.6mph
The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).
Average humidity in April
Wailuku, HI
- Average humidity in April: 75%
The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall in April
Wailuku, HI
- Average rainfall in April: 0.63"
The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in April
Wailuku, HI
- Average rainfall days in April: 8.1 days
The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).
Average daylight in April /
Average sunshine in April
Wailuku, HI
- Average daylight in April: 12h and 4min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in April: 9h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in April
Wailuku, HI
- Average sunshine days in April: 17.5 days
The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).
Average UV index in April
Wailuku, HI
- Average UV index in April: 6
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in April
Wailuku, HI
- Average cloud cover in April: 27
The month with the most cloud cover is March (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 21).
Average visibility in April
Wailuku, HI
- 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).
Wailuku, Hawaii, USA
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