April weather forecastHeeia, HI
April
Weather in April
April, the same as March, is a moderately hot spring month in Heeia, Hawaii, with an average temperature fluctuating between 71.8°F (22.1°C) and 76.5°F (24.7°C).Temperature
The beginning of April reveals an average high-temperature of a still moderately hot 76.5°F (24.7°C), showing minimal deviation from the previous month. Heeia sustains an average of approximately an agreeable 71.8°F (22.1°C) during April nights, with little variation from daytime highs.Humidity
February through April, July, August, October and December, with an average relative humidity of 76%, are the most humid months in Heeia.Rainfall
In Heeia, during April, the rain falls for 17.9 days and regularly aggregates up to 1.22" (31mm) of precipitation. In Heeia, during the entire year, the rain falls for 187.1 days and collects up to 15.83" (402mm) of precipitation.Ocean temperature
In Heeia, Hawaii, in April, the average water temperature is 76.8°F (24.9°C).Note: Taking into account a person's sensitivity to the cold, given sunshine, wind, and air temperature, swimming in 76.8°F (24.9°C) might be pleasant. (FYI: The water temperature set for the Olympic swimming event is between 77°F (25°C) and 82.4°F (28°C).)
Daylight
In April, the average length of the day in Heeia is 12h and 40min.On the first day of April, sunrise is at 6:23 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 6:56 pm HST.
Sunshine
In Heeia, the average sunshine in April is 8.3h.UV index
The months with the lowest UV index are January through June, October through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 6 during April translates into the following guidance:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Heeia, HI
- Average high temperature in April: 76.5°F
The warmest months (with the highest average high temperature) are August and September (81°F).
The month with the lowest average high temperature is February (74.3°F).
- Average low temperature in April: 71.8°F
The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is February (69.6°F).
Average pressure in April
Heeia, 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
Heeia, HI
- Average wind speed in April: 12.5mph
The windiest month (with the highest average wind speed) is July (13.5mph).
The calmest month (with the lowest average wind speed) is January (10.3mph).
Average humidity in April
Heeia, HI
- Average humidity in April: 76%
The months with the highest relative humidity are February, March, April, July, August, October and December (76%).
The months with the lowest relative humidity are January, May, June, September and November (75%).
Average rainfall in April
Heeia, HI
- Average rainfall in April: 1.22"
The wettest month (with the highest rainfall) is March (2.01").
The driest month (with the least rainfall) is July (0.71").
Average rainfall days in April
Heeia, HI
- Average rainfall days in April: 17.9 days
The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is June (13.5 days).
Average sea temperature in April
Heeia, HI
- Average sea temperature in April: 76.8°F
The best month for swimming (with the highest average sea temperature) is September (80.4°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in April /
Average sunshine in April
Heeia, HI
- Average daylight in April: 12h and 42min
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: 8h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in April
Heeia, HI
- Average sunshine days in April: 6.5 days
The month with the most sunshine days is June (12.2 days).
The month with the least sunshine days is April (6.5 days).
Average UV index in April
Heeia, HI
- Average UV index in April: 6
The months with the highest UV index are July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, October, November and December (UV index 6).
Average cloud cover in April
Heeia, HI
- Average cloud cover in April: 39
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in April
Heeia, 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).
