Kailua, Oahu weather in April 2026

Expect daytime maximum temperatures of 27°C in Kailua, Oahu, Hawaii in April based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 55 mm of rainfall in the month.

  • 27°C maximum daytime temperature in April in Kailua, Oahu27
    27°C max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in April in Kailua, Oahu10
    10 days with some rainfall
  • 20°C minimum night-time temperature in April in Kailua, Oahu20
    20°C min night temperature
  • 13 hours of daylight per day in April in Kailua, Oahu13
    13 hours of daylight per day
  • Low heat & humidity in April in Kailua, OahuL
    Low heat & humidity
  • 55 mm monthly rainfall in April in Kailua, Oahu55
    55 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in April in Kailua, Oahu11
    11 (Extreme) UV index
  • 24°C sea temperature in April in Kailua, Oahu24
    24°C sea temperature

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The April weather guide for Hawaii (Kailua, Oahu) 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Kailua, Oahu in April?

Daytime temperatures usually reach 27°C in Kailua, Oahu in April with low heat and humidity, falling to 20°C at night.

How sunny is it in Kailua, Oahu in April?

There are normally 8 hours of bright sunshine each day in Kailua, Oahu in April - that's 65% of daylight hours.

How warm is the sea around Kailua, Oahu in April?

The average sea temperature around Kailua, Oahu in April is 24°C.

Does it rain in Kailua, Oahu in April?

There are usually 10 days with some rain in Kailua, Oahu in April and the average monthly rainfall is 55mm.

Kailua, Oahu April sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st April 2026 06:24 18:46
Wednesday, 15th April 2026 06:12 18:51
Thursday, 30th April 2026 06:00 18:56

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