April weather forecast
Kapaau, HI

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Weather in April

April, like March, in Kapaau, Hawaii, is another refreshing spring month, with an average temperature varying between 54.1°F (12.3°C) and 63°F (17.2°C).

Temperature

The arrival of April records an average high-temperature of a still enjoyable 63°F (17.2°C), closely related to the 61.9°F (16.6°C) observed in March. Throughout April, a modest shift from daytime highs is anticipated, with an average low-temperature of 54.1°F (12.3°C).

Humidity

In Kapaau, the average relative humidity in April is 82%.

Rainfall

In Kapaau, in April, it is raining for 24.1 days, with typically 2.32" (59mm) of accumulated precipitation. In Kapaau, during the entire year, the rain falls for 280.8 days and collects up to 33.9" (861mm) of precipitation.

Daylight

In Kapaau, the average length of the day in April is 12h and 38min.
On the first day of the month, sunrise is at 6:15 am and sunset at 6:37 pm. On the last day of April, in Kapaau, sunrise is at 5:53 am and sunset at 6:46 pm HST.

Sunshine

In Kapaau, the average sunshine in April is 8.1h.

UV index

January through April, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 4 in April translates into the following instructions:
Adopt protective measures - It is advised to guard against sun damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What are the temperatures in Kapaau in April?

April temperatures in Kapaau, Hawaii, vary between a high-temperature of 63°F (17.2°C) and a low-temperature of 54.1°F (12.3°C).

What is the average humidity in April in Kapaau?

In April, the average relative humidity in Kapaau, Hawaii, is 82%.

How many days does it rain in April in Kapaau?

In Kapaau, in April, during 24.1 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

What is the average length of the day in April in Kapaau?

In Kapaau, Hawaii, the average day length in April is 12h and 38min.

When is the sunrise / sunset in April in Kapaau?

On the first day of April, sunrise is at 6:15 am and sunset at 6:37 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 6:46 pm HST.

How long on average sun shines in April in Kapaau?

The average sunshine duration in April in Kapaau is 8.1h.

What are the months with the lowest UV index in Kapaau?

The months with the lowest UV index in Kapaau, Hawaii, are January through April, November and December, with an average maximum UV index of 4.

What is the UV index intensity in April in Kapaau?

In April, the average daily maximum UV index in Kapaau, Hawaii, is 4. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Kapaau, HI

Average temperature in April - Kapaau, HI
  • Average high temperature in April: 63°F

The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is March (61.9°F).

  • Average low temperature in April: 54.1°F

The month with the highest average low temperature is September (59°F).
The coldest month (with the lowest average low temperature) is February (52°F).

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Average pressure in April
Kapaau, HI

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

The month with the highest atmospheric pressure is 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
Kapaau, HI

Average wind speed in April - Kapaau, HI
  • Average wind speed in April: 4.9mph

The windiest months (with the highest average wind speed) are July and August (5.5mph).
The calmest months (with the lowest average wind speed) are January, May and October (4.5mph).

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Average humidity in April
Kapaau, HI

Average humidity in April - Kapaau, HI
  • Average humidity in April: 82%

The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is February (78%).

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Average rainfall in April
Kapaau, HI

Average rainfall in April - Kapaau, HI
  • Average rainfall in April: 2.32"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is June (1.57").

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Average rainfall days in April
Kapaau, HI

Average rainfall days in April - Kapaau, HI
  • Average rainfall days in April: 24.1 days

The month with the highest number of rainy days is September (27.3 days).
The month with the least rainy days is January (17.1 days).

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

Average daylight in April / Average sunshine in April - Kapaau, 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: 10h and 54min).

  • Average sunshine in April: 8h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in April
Kapaau, HI

Average sunshine days in April - Kapaau, HI
  • Average sunshine days in April: 4.1 days

The month with the most sunshine days is January (9.7 days).
The month with the least sunshine days is September (0.8 days).

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Average UV index in April
Kapaau, HI

Average UV index in April - Kapaau, HI
  • Average UV index in April: 4

The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).

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Average cloud cover in April
Kapaau, HI

Average cloud cover in April - Kapaau, HI
  • Average cloud cover in April: 43

The months with the most cloud cover are April and September (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 29).

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Average visibility in April
Kapaau, HI

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

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