April weather forecast
Kalaupapa, HI

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Weather in April

Arrival of April in Kalaupapa sees an escalating trend in daylight hours, reaching up to 12.7 hours. An appreciable increase in temperature occurs, as the mercury nudges to 75.9°F (24.4°C), coupled with a mild decrease in rainfall to 0.83" (21mm) making it the driest of the preceding months. Despite the minor fluctuation in atmospheric variables, the sea temperature remains a constant 75°F (23.9°C), facilitating water recreation choices. As the frequency of sunshine surges, the subsequent month prepares to welcome the highest UV index of the year. Hence, April subtly transitions the weather from early spring towards the embracement of summer.

Temperature

April's arrival in Kalaupapa, Hawaii, brings an average high-temperature of a still moderately hot 75.9°F (24.4°C), demonstrating subtle variation from the preceding month. In Kalaupapa, the month of April brings a consistent average low-temperature of 72.7°F (22.6°C), slightly cooler than its daytime highs.

Humidity

April through August, with an average relative humidity of 76%, are the most humid months.

Rainfall

In Kalaupapa, during April, the rain falls for 10.4 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Kalaupapa, during the entire year, the rain falls for 126.4 days and collects up to 9.84" (250mm) of precipitation.

Ocean temperature

January through April, with an average ocean temperature of 75.2°F (24°C), are months with the coldest seawater in Kalaupapa.
Note: Considering one's resistance to cold, elements like sunshine, wind, and the prevailing temperature matter when taking a swim in 75.2°F (24°C) waters. (For comparison, the Olympic swimming standard is set between 77°F (25°C) and 82.4°F (28°C).)

Daylight

In April, the average length of the day is 12h and 39min.
On the first day of the month, sunrise is at 6:20 am and sunset at 6:42 pm. On the last day of April, in Kalaupapa, sunrise is at 5:57 am and sunset at 6:52 pm HST.

Sunshine

In Kalaupapa, Hawaii, the average sunshine in April is 9.1h.

UV index

January through May, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 6 in April transforms into this advice:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Warning! The reflection of sand and water increases the UV dose.
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Frequently asked questions

What are the temperatures in Kalaupapa in April?

The average high-temperature, in April, in Kalaupapa, is 75.9°F (24.4°C), while the average low-temperature is 72.7°F (22.6°C).

What are the most humid months in Kalaupapa?

The months with the highest humidity in Kalaupapa, Hawaii, are April through August, with an average relative humidity of 76%.

What is the average humidity in April in Kalaupapa?

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

How many days does it rain in April in Kalaupapa?

In Kalaupapa, Hawaii, in April, it is raining for 10.4 days, with typically 0.83" (21mm) of accumulated precipitation.

What are the months with the coldest ocean in Kalaupapa?

The months with the coldest seawater in Kalaupapa, Hawaii, are January through April, with an average ocean temperature of 75.2°F (24°C).

How warm is the water in April in Kalaupapa?

In April, the average ocean temperature is 75.2°F (24°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 75.2°F (24°C) water.

How many hours of daylight does Kalaupapa have in April?

The average day length in April is 12h and 39min.

When are sunrise and sunset in April in Kalaupapa?

On the first day of April in Kalaupapa, sunrise is at 6:20 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 6:52 pm HST.

How long on average sun shines in April in Kalaupapa?

In Kalaupapa, the average sunshine duration in April is 9.1h.

When is the lowest UV index in Kalaupapa?

January through May, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Kalaupapa.

How high is the UV index in April in Kalaupapa?

In Kalaupapa, the average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high hazard to health from exposure to the Sun's 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
Kalaupapa, HI

Average temperature in April - Kalaupapa, HI
  • Average high temperature in April: 75.9°F

The warmest months (with the highest average high temperature) are August and September (80.2°F).
The month with the lowest average high temperature is February (74.3°F).

  • Average low temperature in April: 72.7°F

The months with the highest average low temperature are September and October (77.2°F).
The coldest month (with the lowest average low temperature) is March (71.2°F).

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Average pressure in April
Kalaupapa, HI

Average pressure in April - Kalaupapa, HI
  • Average pressure in April: 30.05"Hg

The months with the highest atmospheric pressure are March and April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

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Average wind speed in April
Kalaupapa, HI

Average wind speed in April - Kalaupapa, HI
  • Average wind speed in April: 12.4mph

The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.8mph).

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Average humidity in April
Kalaupapa, HI

Average humidity in April - Kalaupapa, HI
  • Average humidity in April: 76%

The months with the highest relative humidity are April, May, June, July and August (76%).
The months with the lowest relative humidity are January and November (74%).

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Average rainfall in April
Kalaupapa, HI

Average rainfall in April - Kalaupapa, HI
  • Average rainfall in April: 0.83"

The wettest month (with the highest rainfall) is March (1.3").
The driest month (with the least rainfall) is July (0.31").

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Average rainfall days in April
Kalaupapa, HI

Average rainfall days in April - Kalaupapa, HI
  • Average rainfall days in April: 10.4 days

The month with the highest number of rainy days is March (13.2 days).
The month with the least rainy days is July (8.5 days).

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Average sea temperature in April
Kalaupapa, HI

Average sea temperature in April - Kalaupapa, HI
  • Average sea temperature in April: 75°F

The best month for swimming (with the highest average sea temperature) is September (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).

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

Average daylight in April / Average sunshine in April - Kalaupapa, 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 1min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

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Average sunshine days in April
Kalaupapa, HI

Average sunshine days in April - Kalaupapa, HI
  • Average sunshine days in April: 12.6 days

The month with the most sunshine days is July (16.1 days).
The month with the least sunshine days is November (10.8 days).

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Average UV index in April
Kalaupapa, HI

Average UV index in April - Kalaupapa, HI
  • Average UV index in April: 6

The months with the highest UV index are June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, November and December (UV index 6).

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Average cloud cover in April
Kalaupapa, HI

Average cloud cover in April - Kalaupapa, HI
  • Average cloud cover in April: 28

The months with the most cloud cover are February and March (Cloud cover 30).
The month with the least cloud cover is September (Cloud cover 23).

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Average visibility in April
Kalaupapa, HI

Average visibility in April - Kalaupapa, 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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Kalaupapa, Hawaii, USA

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