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

April weather forecast and climate
Honolulu, HI

Waikiki beach viewed from above, with clear calm waters on the foot of Honolulu city, Hawaii, with the vast cityscape and mountains in the distance
Waikiki beach viewed from above, with clear calm waters on the foot of Honolulu city, Hawaii, with the vast cityscape and mountains in the distance
April in Honolulu is less humid then March at an average of 66% monthly. The temperatures rise to read an average between 69.8°F (21°C) and 82.4°F (28°C) getting warmer with the sunshine hours sitting steady at an average of nine per day. The ocean temperature rises to read an average of 77°F (25°C) throughout the month. The rise in temperature signals the approaching hot season and results in a drop during the monthly rainfall. The rain falls in April for an average of thirteen days and collects at 0.7" (17.8mm).

What is the temperature in Abril in Honolulu?

The average high-temperature, in Abril, in Honolulu, is 82.8°F (28.2°C), while the average low-temperature is 69.4°F (20.8°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), that combines relative humidity and air temperature, in Abril is estimated at 87.3°F (30.7°C).

What is the average humidity in Abril in Honolulu?

In Abril, the average relative humidity in Honolulu is 67.3%.

How much does it rain in Honolulu in Abril?

In Honolulu, in Abril, it is raining for 7.5 days, with typically 9.84" (250mm) of accumulated precipitation.

How warm is the water in Abril in Honolulu?

In Honolulu, the average seawater temperature in Abril is 76.8°F (24.9°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.8°F (24.9°C) water may be enjoyable.

What is the average length of the day in Abril in Honolulu?

In Abril, the average length of the day in Honolulu is 12.7h.

How long on average sun shines in Abril in Honolulu?

The average sunshine in Abril in Honolulu is 8.4h.

What is the UV index reading in Abril in Honolulu?

In Honolulu, Hawaii, the average daily maximum UV index in Abril is 11. A UV Index of 11, and more, symbolizes an extreme health vulnerability from the exposure to the Sun's UV rays.
Average temperature in April - Honolulu, HI
  • Average high temperature in April: 82.7°F

The warmest month (with the highest average high temperature) is August (88.7°F).
The month with the lowest average high temperature is January (80.1°F).

  • Average low temperature in April: 69.4°F

The month with the highest average low temperature is August (75.1°F).
The coldest month (with the lowest average low temperature) is February (66.1°F).

Average humidity in April - Honolulu, HI
  • Average humidity in April: 67.3%

The month with the highest relative humidity is January (73.3%).
The month with the lowest relative humidity is August (64.1%).

Average rainfall in April - Honolulu, HI
  • Average rainfall in April: 9.8"

The wettest month (with the highest rainfall) is March (11.5").
The driest month (with the lowest rainfall) is June (6.2").

Average rainfall days in April - Honolulu, HI
  • Average rainfall days in April: 7.5 days

The month with the highest number of rainy days is December (9.7 days).
The month with the lowest number of rainy days is August (5.6 days).

Average sea temperature in April - Honolulu, HI
  • Average sea temperature in April: 76.8°F

The best month for swimming (with the highest average sea temperature) is September (80.4°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).

Average daylight in April / Average sunshine in April - Honolulu, HI
  • Average daylight in April: 12.7h

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: 8.4h

The month with most sunshine is July (Average sunshine: 9.9h).
The month with least sunshine is December (Average sunshine: 6.4h).

Average UV index in April - Honolulu, 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).