Best time to visit Kailua, Oahu

Find the best time to visit Kailua, Oahu and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Kailua, Oahu by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Kailua, Oahu?

The best time to visit Kailua, Oahu is May based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • 26°C maximum daytime temperature in January in Kailua, Oahu26
    Jan
  • 26°C maximum daytime temperature in February in Kailua, Oahu26
    Feb
  • 27°C maximum daytime temperature in March in Kailua, Oahu27
    Mar
  • 27°C maximum daytime temperature in April in Kailua, Oahu27
    Apr
  • 28°C maximum daytime temperature in May in Kailua, Oahu28
    May
  • 29°C maximum daytime temperature in June in Kailua, Oahu29
    Jun
  • 30°C maximum daytime temperature in July in Kailua, Oahu30
    Jul
  • 31°C maximum daytime temperature in August in Kailua, Oahu31
    Aug
  • 30°C maximum daytime temperature in September in Kailua, Oahu30
    Sep
  • 29°C maximum daytime temperature in October in Kailua, Oahu29
    Oct
  • 28°C maximum daytime temperature in November in Kailua, Oahu28
    Nov
  • 27°C maximum daytime temperature in December in Kailua, Oahu27
    Dec

Hours of Sunshine (daily)

Which is the hottest month in Kailua, Oahu?

The hottest time of year in Kailua, Oahu is normally September. Expect maximum daytime temperatures to reach 30°C with high heat and humidity.

Which month has the most rain in Kailua, Oahu?

In terms of rainfall, November is usually the wettest month in Kailua, Oahu with 119mm on average. There are normally 10 days in November with some rain.

When is it sunniest in Kailua, Oahu?

The sunniest time of year in Kailua, Oahu is normally September with bright sunshine on average for 74% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Kailua, Oahu?

The sea is usually at its warmest in Kailua, Oahu in September when the water temperature reaches 27°C.

Best time to visit

The weather guide for Hawaii (Kailua, Oahu) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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