Kailua, Oahu weather in April 2026

Expect daytime maximum temperatures of 81°F 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 2.2 inches of rainfall in the month.

  • 81°F maximum daytime temperature in April in Kailua, Oahu81
    81°F max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in April in Kailua, Oahu10
    10 days with some rainfall
  • 68°F minimum night-time temperature in April in Kailua, Oahu68
    68°F 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
  • 2.2 inches monthly rainfall in April in Kailua, Oahu2.2
    2.2 inches of monthly rainfall
  • UV (maximum) index 11 (Extreme) in April in Kailua, Oahu11
    11 (Extreme) UV index
  • 75°F sea temperature in April in Kailua, Oahu75
    75°F sea temperature

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Expires at 23:59 on Wednesday 31st Dec 2025

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)  |  Imperial (°F)

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How hot is it in Kailua, Oahu in April?

Daytime temperatures usually reach 81°F in Kailua, Oahu in April with low heat and humidity, falling to 68°F 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 75°F.

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 2.2 inches.

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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