Kailua, Big Island weather in April 2026

Expect daytime maximum temperatures of 68°F in Kailua, Big Island, Hawaii in April based on long-term weather averages. There are 16 days with some rainfall and typically 2.5 inches of rainfall in the month.

  • 68°F maximum daytime temperature in April in Kailua, Big Island68
    68°F max day temperature
  • 16 days with some rainfall in April in Kailua, Big Island16
    16 days with some rainfall
  • 55°F minimum night-time temperature in April in Kailua, Big Island55
    55°F min night temperature
  • 13 hours of daylight per day in April in Kailua, Big Island13
    13 hours of daylight per day
  • Low heat & humidity in April in Kailua, Big IslandL
    Low heat & humidity
  • 2.5 inches monthly rainfall in April in Kailua, Big Island2.5
    2.5 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in April in Kailua, Big Island11
    11+ (Extreme) UV index
  • 77°F sea temperature in April in Kailua, Big Island77
    77°F sea temperature

More about Kailua, Big Island

Kailua, Big Island by month

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The April weather guide for Hawaii (Kailua, Big Island) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Kailua, Big Island in April?

Daytime temperatures usually reach 81°F in Kailua, Big Island in April with low heat and humidity, falling to 66°F at night.

How sunny is it in Kailua, Big Island in April?

There are normally 8 hours of bright sunshine each day in Kailua, Big Island in April - that's 64% of daylight hours.

How warm is the sea around Kailua, Big Island in April?

The average sea temperature around Kailua, Big Island in April is 75°F.

Does it rain in Kailua, Big Island in April?

There are usually 10 days with some rain in Kailua, Big Island in April and the average monthly rainfall is 0.6 inches.

Kailua, Big Island April sunrise & sunset times

Browse the sunrise and sunset times for Kailua, Big Island in April 2026. Select a month to view Kailua, Big Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st April 2026 06:17 18:38
Wednesday, 15th April 2026 06:06 18:42
Thursday, 30th April 2026 05:56 18:47

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