April weather forecast
Princeville, HI

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Weather in April

April's weather outlook shows a decline in rainfall from March to 1.3in, making it a drier and more favorable month for outdoor activities. April is characterized by longer daylight hours, allowing more time for tourists and locals alike to explore Princeville's beautiful outdoors. The temperatures continue their steady, mild climb, heralding the onset of summer. The balmy days and temperate nights create an inviting climate throughout the month. The relative UV index stays stable, thus providing excellent weather conditions for a variety of water sports.

Temperature

April's presence in Princeville records an average high-temperature of a warm 74.8°F (23.8°C), closely mirroring March's climate. During April, Princeville's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature 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.

Daylight

In April, the average length of the day is 12h and 41min.
On the first day of the month, sunrise is at 6:29 am and sunset at 6:53 pm. On the last day of April, sunrise is at 6:05 am and sunset at 7:04 pm HST.

Sunshine

The average sunshine in April 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 of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index of 6 during April translates into the following directions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. 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. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in April?

The average high-temperature, in April, in Princeville, 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 April, the average relative humidity is 76%.

What is the driest month?

April is the month with the least rainfall. Rain falls for 18.3 days and accumulates 1.3" (33mm) of precipitation.

How many days does it rain in April in Princeville?

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

How many hours of daylight does Princeville have in April?

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

When are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:29 am and sunset at 6:53 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 7:04 pm HST.

How many hours of sunshine does Princeville have in April?

In April, the average sunshine duration is 7.8h.

What are the months with the lowest UV index?

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

What is the UV index intensity in April?

In April, the average daily maximum UV index in Princeville is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Princeville, HI

Average temperature in April - Princeville, 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).

Average pressure in April
Princeville, HI

Average pressure in April - Princeville, 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).

Average wind speed in April
Princeville, HI

Average wind speed in April - Princeville, 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).

Average humidity in April
Princeville, HI

Average humidity in April - Princeville, 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%).

Average rainfall in April
Princeville, HI

Average rainfall in April - Princeville, 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").

Average rainfall days in April
Princeville, HI

Average rainfall days in April - Princeville, 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).

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

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

Average sunshine days in April
Princeville, HI

Average sunshine days in April - Princeville, 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).

Average UV index in April
Princeville, HI

Average UV index in April - Princeville, 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
Princeville, HI

Average cloud cover in April - Princeville, 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).

Average visibility in April
Princeville, HI

Average visibility in April - Princeville, 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).

Princeville, Hawaii, USA

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