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
The initiation of April sees an average high-temperature of a still pleasant 69.3°F (20.7°C), maintaining the same temperature as the previous month. Throughout April, a minimal difference from peak daytime temperatures is noted, marking a steady low-temperature average of 64.9°F (18.3°C).Humidity
The average relative humidity in April is 79%.Rainfall
In Naalehu, in April, it is raining for 19.3 days, with typically 1.42" (36mm) of accumulated precipitation. In Naalehu, during the entire year, the rain falls for 216.1 days and collects up to 16.57" (421mm) of precipitation.Daylight
The average length of the day in April is 12h and 35min.On the first day of April, sunrise is at 6:15 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 6:44 pm HST.
Sunshine
In April, the average sunshine in Naalehu is 9.1h.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 5 in April transforms into this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. To protect against the Sun's most potent rays, avoid direct exposure around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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?
How many days does it rain in April?
How many hours of daylight does Naalehu have in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
When is the lowest UV index?
What is the UV index intensity in April?
Average temperature in April
Naalehu, HI
- Average high temperature in April: 69.3°F
The warmest months (with the highest average high temperature) are August and October (73.2°F).
The month with the lowest average high temperature is February (68.9°F).
- Average low temperature in April: 64.9°F
The month with the highest average low temperature is October (70°F).
The coldest month (with the lowest average low temperature) is March (64.8°F).
Average pressure in April
Naalehu, HI
- Average pressure in April: 30.04"Hg
The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in April
Naalehu, HI
- Average wind speed in April: 6.1mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in April
Naalehu, HI
- Average humidity in April: 79%
The months with the highest relative humidity are June, July, August and September (81%).
The month with the lowest relative humidity is February (73%).
Average rainfall in April
Naalehu, HI
- Average rainfall in April: 1.42"
The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in April
Naalehu, HI
- Average rainfall days in April: 19.3 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is January (10.8 days).
Average daylight in April /
Average sunshine in April
Naalehu, HI
- Average daylight in April: 12h and 4min
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: 9h and 1min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 7h and 18min).
Average sunshine days in April
Naalehu, HI
- Average sunshine days in April: 3.5 days
The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is May (3.2 days).
Average UV index in April
Naalehu, HI
- Average UV index in April: 5
The months with the highest UV index are May, June, July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 5).
Average cloud cover in April
Naalehu, HI
- Average cloud cover in April: 27
The month with the most cloud cover is June (Cloud cover 31).
The month with the least cloud cover is January (Cloud cover 15).
Average visibility in April
Naalehu, 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).
Naalehu, Hawaii, USA
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