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 snowfall 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
Haiku marks the start of April with an average high-temperature of a warm 74.3°F (23.5°C), hinting at a slight fluctuation from March's 72.9°F (22.7°C). In the month of April, Haiku experiences a minor discrepancy from peak daytime temperatures, settling at an average low-temperature of 70.9°F (21.6°C).Humidity
The average relative humidity in April is 77%.Rainfall
In Haiku, in April, it is raining for 11.7 days, with typically 1.42" (36mm) of accumulated precipitation. In Haiku, Hawaii, during the entire year, the rain falls for 136.7 days and collects up to 13.94" (354mm) of precipitation.Snowfall
January through August, October through December are months without snowfall in Haiku.Daylight
The average length of the day in April is 12h and 39min.On the first day of the month, sunrise is at 6:17 am and sunset at 6:40 pm. On the last day of April, in Haiku, Hawaii, sunrise is at 5:54 am and sunset at 6:49 pm HST.
Sunshine
In April, the average sunshine is 9h.UV index
The months with the lowest UV index in Haiku are January through August, October through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in April converts into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. 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. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What is the temperature in April in Haiku?
What is the average humidity in April in Haiku?
How many days does it rain in April in Haiku?
When it does not snow in Haiku?
What is the average length of the day in April in Haiku?
When are sunrise and sunset in April in Haiku?
How many hours of sunshine does Haiku have in April?
What is the month with the lowest UV index in Haiku?
How high is the UV index in April in Haiku?
Average temperature in April
Haiku, HI
- Average high temperature in April: 74.3°F
The warmest month (with the highest average high temperature) is September (79°F).
The month with the lowest average high temperature is March (72.9°F).
- Average low temperature in April: 70.9°F
The month with the highest average low temperature is September (76.1°F).
The coldest month (with the lowest average low temperature) is March (69.8°F).
Average pressure in April
Haiku, HI
- Average pressure in April: 30.06"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in April
Haiku, HI
- Average wind speed in April: 13.5mph
The windiest month (with the highest average wind speed) is June (14.4mph).
The calmest month (with the lowest average wind speed) is January (10.9mph).
Average humidity in April
Haiku, HI
- Average humidity in April: 77%
The months with the highest relative humidity are July and August (78%).
The months with the lowest relative humidity are January and February (76%).
Average rainfall in April
Haiku, HI
- Average rainfall in April: 1.42"
The wettest month (with the highest rainfall) is October (2.17").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in April
Haiku, HI
- Average rainfall days in April: 11.7 days
The month with the highest number of rainy days is March (14.1 days).
The month with the least rainy days is September (8.1 days).
Average snowfall days in April
Haiku, HI
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in April /
Average sunshine in April
Haiku, 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 0min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in April
Haiku, HI
- Average sunshine days in April: 12.4 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is November (11.2 days).
Average UV index in April
Haiku, 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
Haiku, HI
- Average cloud cover in April: 32
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is September (Cloud cover 23).
Average visibility in April
Haiku, 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).
Haiku, Hawaii, USA
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