April weather - Spring 2024

Weather in April
Frequently asked questions
Average temperature in April
Average pressure in April
Average wind speed in April
Average humidity in April
Average rainfall in April
Average rainfall days in April
Average sea temperature in April
Average daylight in April
Average sunshine in April
Average sunshine days in April
Average UV index in April
Average cloud cover in April
Average visibility in April

The vast Taro farm fields in the valley of Hanalei, Hawaii, with beautiful cloudy skies and mountains

Weather in April

The weather in April holds a unique place in Hanalei's calendar as it fuses the onset of spring with the prelude to summer. The weather pattern from March continues, albeit with diminished rainfall levels. Headlining the month is the significant increase in daylight hours, up to 12.7, paving the way for more sun-soaked days. Besides elongated daylight hours, the rise in both land and sea temperatures promises a pre-summer warmth before the arrival of the hot May.

Temperature

The beginning of April records an average high-temperature of a warm 74.8°F (23.8°C), almost echoing the conditions of the previous month. Hanalei, in April, logs an average low-temperature of 70.9°F (21.6°C), a subtle step down from daytime readings.

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

January through April, with an average ocean temperature of 75.2°F (24°C), are months with the coldest seawater in Hanalei.
Note: A swim in 75.2°F (24°C) waters can be refreshing, especially when factoring in a person's cold tolerance, sunshine, wind, and the overall temperature. As a point of reference, Olympic swimming events are held in 77°F (25°C) to 82.4°F (28°C) waters.

Daylight

The average length of the day in April 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

In April, the average sunshine in Hanalei is 7.8h.

UV index

January through August, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Hanalei. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 6 in April translates into the following recommendations:
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 from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.

[Resources]

Frequently asked questions

What are the temperatures in Hanalei in April?

In Hanalei, in April, the average high-temperature is 74.8°F (23.8°C), and the average low-temperature is 70.9°F (21.6°C).

What is the average humidity in April in Hanalei?

The average relative humidity in April in Hanalei is 76%.

What is the driest month in Hanalei?

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

How much does it rain in Hanalei in April?

In April, the rain falls for 18.3 days. Throughout April, 1.3" (33mm) of precipitation is accumulated.

When is the ocean coldest in Hanalei?

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

How warm is the water in April in Hanalei?

In April, the average ocean temperature in Hanalei 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 Hanalei have in April?

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

When is the sunrise / sunset in April in Hanalei?

On the first day of April in Hanalei, 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 long on average sun shines in April in Hanalei?

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

When is the lowest UV index in Hanalei?

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

How high is the UV index in April in Hanalei?

In April, the average daily maximum UV index in Hanalei is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M April M J J A S O N D

Mar

April

May

Average high temperature

73.2°F 22.9°C

74.8°F 23.8°C

76.8°F 24.9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.4mph 20km/h

11.8mph 19km/h

10.8mph 17.4km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

18.6

18.3

18.5

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

6.3

5.7

6.7

Average UV index

Average cloud cover

Average visibility

Average temperature in April
Hanalei, 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).

[Resources]

Average pressure in April
Hanalei, 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).

[Resources]

Average wind speed in April
Hanalei, 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).

[Resources]

Average humidity in April
Hanalei, 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%).

[Resources]

Average rainfall in April
Hanalei, 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").

[Resources]

Average rainfall days in April
Hanalei, 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).

[Resources]

Average sea temperature in April
Hanalei, HI

Average sea temperature in April: 75°F

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

[Resources]

Average daylight in April /
Average sunshine in April
Hanalei, 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).

[Resources]

Average sunshine days in April
Hanalei, 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).

[Resources]

Average UV index in April
Hanalei, 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).

[Resources]

Average cloud cover in April
Hanalei, 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).

[Resources]

Average visibility in April
Hanalei, 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).

[Resources]

April weather forecast
Hanalei, HI

Contents