April weather forecastKeanakolu, HI
April
Weather in April
April, the same as March, is another refreshing spring month in Keanakolu, Hawaii, with an average temperature ranging between min 54.1°F (12.3°C) and max 63°F (17.2°C).Temperature
Upon the onset of April, Keanakolu witnesses an average high-temperature of a still comfortable 63°F (17.2°C), showing a close resemblance to the prior month. Keanakolu, in April, registers an average low temperature of 54.1°F (12.3°C), showing a minute reduction from daily highs.Humidity
The average relative humidity in April is 82%.Rainfall
In Keanakolu, in April, during 24.1 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, in Keanakolu, Hawaii, there are 280.8 rainfall days, and 33.9" (861mm) of precipitation is accumulated.Daylight
In Keanakolu, the average length of the day in April is 12h and 37min.On the first day of April in Keanakolu, sunrise is at 6:14 am and sunset at 6:35 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 6:44 pm HST.
Sunshine
In Keanakolu, the average sunshine in April is 8.1h.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 4 during April translates into the following guidance:
Exercise prevention - Protecting skin and eyes from harm is required. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Keanakolu, HI
- Average high temperature in April: 63°F
The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is March (61.9°F).
- Average low temperature in April: 54.1°F
The month with the highest average low temperature is September (59°F).
The coldest month (with the lowest average low temperature) is February (52°F).
Average pressure in April
Keanakolu, 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
Keanakolu, HI
- Average wind speed in April: 4.9mph
The windiest months (with the highest average wind speed) are July and August (5.5mph).
The calmest months (with the lowest average wind speed) are January, May and October (4.5mph).
Average humidity in April
Keanakolu, HI
- Average humidity in April: 82%
The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is February (78%).
Average rainfall in April
Keanakolu, HI
- Average rainfall in April: 2.32"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is June (1.57").
Average rainfall days in April
Keanakolu, HI
- Average rainfall days in April: 24.1 days
The month with the highest number of rainy days is September (27.3 days).
The month with the least rainy days is January (17.1 days).
Average daylight in April /
Average sunshine in April
Keanakolu, HI
- Average daylight in April: 12h and 36min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in April: 8h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in April
Keanakolu, HI
- Average sunshine days in April: 4.1 days
The month with the most sunshine days is January (9.7 days).
The month with the least sunshine days is September (0.8 days).
Average UV index in April
Keanakolu, HI
- Average UV index in April: 4
The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in April
Keanakolu, HI
- Average cloud cover in April: 43
The months with the most cloud cover are April and September (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 29).
Average visibility in April
Keanakolu, 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).





