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
With the onset of April, the average high-temperature registers at a moderately hot 74.8°F (23.8°C), subtly different from March's 73.2°F (22.9°C). Koloa upholds a consistent average temperature of 70.9°F (21.6°C) throughout the nights of April.Humidity
In April, the average relative humidity is 76%.Rainfall
April is the month with the least rainfall. Rain falls for 18.3 days and accumulates 1.3" (33mm) of precipitation.Daylight
In April, the average length of the day in Koloa is 12h and 40min.On the first day of April, sunrise is at 6:29 am and sunset at 6:53 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 7:03 pm HST.
Sunshine
In April, the average sunshine in Koloa, Hawaii, is 7.8h.UV index
The months with the lowest UV index are January through August, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 6 in April transforms into this advice:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. 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 Koloa in April?
What is the average humidity in April in Koloa?
What is the driest month in Koloa?
How many days does it rain in April in Koloa?
How many hours of daylight does Koloa have in April?
When are sunrise and sunset in April in Koloa?
How many hours of sunshine does Koloa have in April?
What is the month with the lowest UV index in Koloa?
What is the UV index intensity in April in Koloa?
Average temperature in April
Koloa, HI
- Average high temperature in April: 74.8°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The months with the lowest average high temperature are February and March (73.2°F).
- Average low temperature in April: 70.9°F
The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in April
Koloa, HI
- Average pressure in April: 30.07"Hg
The month with the highest atmospheric pressure is April (30.07"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in April
Koloa, HI
- Average wind speed in April: 11.5mph
The windiest month (with the highest average wind speed) is July (12.3mph).
The calmest month (with the lowest average wind speed) is January (10mph).
Average humidity in April
Koloa, HI
- Average humidity in April: 76%
The months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).
Average rainfall in April
Koloa, HI
- Average rainfall in April: 1.3"
The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is April (1.3").
Average rainfall days in April
Koloa, HI
- Average rainfall days in April: 18.3 days
The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is January (12.5 days).
Average daylight in April /
Average sunshine in April
Koloa, HI
- Average daylight in April: 12h and 4min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in April
Koloa, HI
- Average sunshine days in April: 5.7 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is August (2.9 days).
Average UV index in April
Koloa, HI
- Average UV index in April: 6
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
Average cloud cover in April
Koloa, HI
- Average cloud cover in April: 46
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 38).
Average visibility in April
Koloa, 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).
Koloa, Hawaii, USA
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