April weather forecast
Wailua, HI

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Weather in April

April in Wailua, Hawaii, precipitates a gradual shift in weather patterns as we move further into the year. Despite the reduction of rainfall to 1.3" (33mm), wetter compared to the upcoming month of May, the climate remains conducive for a wide range of activities. Ocean temperatures provide an inviting setup for under-water sports like snorkeling, deep-sea diving, and surfing. Coupled with the exhaustive daylight hours of 12.7, the overall weather conditions amplify the island's picturesque beauty. The harmony between the warm sun, cool ocean, and moderate winds creates an enticing milieu for visitors.

Temperature

Wailua experiences a recorded average high-temperature of a warm 74.8°F (23.8°C) in April, closely aligned with March's 73.2°F (22.9°C). Wailua's nighttime temperature in April shows a minor descent, with a steady average of 70.9°F (21.6°C).

Humidity

In April, the average relative humidity is 76%.

Rainfall

The month with the least rainfall is April, when the rain falls for 18.3 days and typically collects 1.3" (33mm) of precipitation.

Ocean temperature

In April, the average ocean temperature is 76.3°F (24.6°C).
Note: People sensitive to cold might find swimming in 76.3°F (24.6°C) challenging. However, conditions like sunshine, wind, and ambient temperature play a significant role in the overall comfort. Wetsuits, while optional, might be beneficial.

Daylight

In April, the average length of the day in Wailua, Hawaii, is 12h and 41min.
On the first day of the month, sunrise is at 6:29 am and sunset at 6:52 pm. On the last day of April, sunrise is at 6:05 am and sunset at 7:03 pm HST.

Sunshine

In April, the average sunshine 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 reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 6 in April translates into the following instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Caution! The mirror effect of sand and water ups the UV radiation strength.
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Frequently asked questions

What are April temperatures in Wailua?

The average high-temperature, in April, in Wailua, is 74.8°F (23.8°C), while the average low-temperature is 70.9°F (21.6°C).

What is the average humidity in April in Wailua?

In April, the average relative humidity in Wailua, Hawaii, is 76%.

What is the driest month in Wailua?

The month with the least rainfall in Wailua, Hawaii, is April, when the rain falls for 18.3 days and typically collects 1.3" (33mm) of precipitation.

How much does it rain in Wailua in April?

In Wailua, in April, during 18.3 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

What is the water temperature in April in Wailua?

In Wailua, Hawaii, in April, the average water temperature is 76.3°F (24.6°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.3°F (24.6°C) water may be enjoyable.

How many hours of daylight does Wailua have in April?

In April, the average day length is 12h and 41min.

When is the sunrise / sunset in April in Wailua?

In April, on the first day of the month, sunrise is at 6:29 am and sunset at 6:52 pm. On the last day of the month, in Wailua, sunrise is at 6:05 am and sunset at 7:03 pm HST.

How many hours of sunshine does Wailua have in April?

In April, the average sunshine duration in Wailua, Hawaii, is 7.8h.

What is the month with the lowest UV index in Wailua?

The months with the lowest UV index in Wailua are January through August, October through December, with an average maximum UV index of 6.

What is the UV index intensity in April in Wailua?

In Wailua, Hawaii, the average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Wailua, HI

Average temperature in April - Wailua, 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).

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Average pressure in April
Wailua, HI

Average pressure in April - Wailua, 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).

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Average wind speed in April
Wailua, HI

Average wind speed in April - Wailua, 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).

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Average humidity in April
Wailua, HI

Average humidity in April - Wailua, 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%).

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Average rainfall in April
Wailua, HI

Average rainfall in April - Wailua, 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").

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Average rainfall days in April
Wailua, HI

Average rainfall days in April - Wailua, 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).

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Average sea temperature in April
Wailua, HI

Average sea temperature in April - Wailua, HI
  • Average sea temperature in April: 76.2°F

The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (74.8°F).

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Average daylight in April /
Average sunshine in April
Wailua, HI

Average daylight in April / Average sunshine in April - Wailua, 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).

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Average sunshine days in April
Wailua, HI

Average sunshine days in April - Wailua, 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).

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Average UV index in April
Wailua, HI

Average UV index in April - Wailua, 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).

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Average cloud cover in April
Wailua, HI

Average cloud cover in April - Wailua, 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).

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Average visibility in April
Wailua, HI

Average visibility in April - Wailua, 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).

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Wailua, Hawaii, USA

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