Hana
Hawaii, USA
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Hana, HI

April, like March, in Hana, Hawaii, is a moderately hot spring month, with average temperature ranging between min 66.9°F (19.4°C) and max 79°F (26.1°C).

Temperature

In Hana, the average high-temperature is practically the same as in March - a still warm 79°F (26.1°C). The average low-temperature, in April, is 66.9°F (19.4°C).

Rainfall

In Hana, it is raining for 16 days, with typically 7.3" (185.4mm) of accumulated precipitation. In Hana, Hawaii, during the entire year, the rain falls for 171 days and collects up to 82.5" (2096.7mm) of precipitation.

Ocean temperature

In April, the average ocean temperature is 76.6°F (24.8°C).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.6°F (24.8°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

The average length of the day in Hana is 12.6h.

Sunshine

In April, the average sunshine is 7h.

UV index

In Hana, the average daily maximum UV index in April is 11. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unsafe exposure to the UV radiation for the average person.
Note: In April, the average maximum UV index of 11 translate into the following recommendations:
Take all required precautions, as unprotected skin and eyes can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in April in Hana?

The average high-temperature, in April, in Hana, is 79°F (26.1°C), while the average low-temperature is 66.9°F (19.4°C).

How much does it rain in Hana in April?

In April, in Hana, Hawaii, the rain falls for 16 days. Throughout April, 7.3" (185.4mm) of precipitation is accumulated.

What is the ocean temperature in April in Hana?

In Hana, Hawaii, the average seawater temperature in April is 76.6°F (24.8°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 76.6°F (24.8°C).

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

The average length of the day in April in Hana, Hawaii, is 12.6h.

How long on average sun shines in April in Hana?

In Hana, the average sunshine in April is 7h.

How high is the UV index in April in Hana?

In Hana, Hawaii, the average daily maximum UV index in April is 11. A UV Index of 11, and more, symbolizes an extreme health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in April - Hana, HI
  • Average high temperature in April: 26.1°C

Warmest months (with the highest average high temperature) are August and September (28.3°C).
Months with the lowest average high temperature are January, February and March (25.6°C).

  • Average low temperature in April: 19.4°C

The month with the highest average low temperature is August (22.2°C).
The coldest month (with the lowest average low temperature) is February (17.8°C).

Average rainfall in April - Hana, HI
  • Average rainfall in April: 185.4mm

The wettest month (with the highest rainfall) is March (241.8mm).
The driest month (with the lowest rainfall) is June (103.6mm).

Average rainfall days in April - Hana, HI
  • Average rainfall days in April: 16 days

Months with the highest number of rainy days are April, July and August (16 days).
Months with the lowest number of rainy days are January and February (12 days).

Average sea temperature in April - Hana, HI
  • Average sea temperature in April: 24.8°C

The best month for swimming (with the highest average sea temperature) is September (26.7°C).
The coldest month (with the lowest average sea temperature) is March (24.3°C).

Average daylight in April / Average sunshine in April - Hana, HI
  • Average daylight in April: 12.6h

The month with the longest days is June (Average daylight: 13.4h).
The month with shortest days is December (Average daylight: 10.9h).

  • Average sunshine in April: 7h

Months with most sunshine are June, July, August and September (Average sunshine: 8h).
Months with least sunshine are November and December (Average sunshine: 6).

Average UV index in April - Hana, HI
  • Average UV index in April: 11

Months with the highest UV index are June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 6).