Kailua, Oahu weather in July 2025

Expect 86°F daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Kailua, Oahu in July. Check more long-term weather averages for Kailua, Oahu in July before you book your next holiday to Hawaii in 2025/2026.

  • 86°F maximum daytime temperature in July in Kailua, Oahu86
    86°F max day temperature
  • 10 hours of sunshine per day
  • 8 days with some rainfall in July in Kailua, Oahu8
    8 days with some rainfall
  • 72°F minimum night-time temperature in July in Kailua, Oahu72
    72°F min night temperature
  • 13 hours of daylight per day in July in Kailua, Oahu13
    13 hours of daylight per day
  • Moderate heat & humidity in July in Kailua, OahuM
    Moderate heat & humidity
  • 1.6 inches monthly rainfall in July in Kailua, Oahu1.6
    1.6 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in July in Kailua, Oahu11
    11+ (Extreme) UV index
  • 79°F sea temperature in July in Kailua, Oahu79
    79°F sea temperature

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Kailua, Oahu by month

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The July 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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More about the USA

How hot is it in Kailua, Oahu in July?

Daytime temperatures usually reach 86°F in Kailua, Oahu in July with moderate heat and humidity, falling to 72°F at night.

How sunny is it in Kailua, Oahu in July?

There are normally 10 hours of bright sunshine each day in Kailua, Oahu in July - that's 72% of daylight hours.

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

The average sea temperature around Kailua, Oahu in July is 79°F.

Does it rain in Kailua, Oahu in July?

There are usually 8 days with some rain in Kailua, Oahu in July and the average monthly rainfall is 1.6 inches.

Kailua, Oahu July sunrise & sunset times

Browse the sunrise and sunset times for Kailua, Oahu in July 2025. Select a month to view Kailua, Oahu sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 05:53 19:17
Wednesday, 16th July 2025 05:58 19:16
Thursday, 31st July 2025 06:04 19:10

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