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 Kailua, Oahu

Q: When is the best time to visit Kailua, Oahu?

The best time to visit Kailua, Oahu is January, February, March, April, May, November and December based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C.

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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 January, February, March, April, May, November and December based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]

Change the criteria to reflect your weather preferences.

5
Jan
5
Feb
5
Mar
5
Apr
5
May
4
Jun
3.5
Jul
2.5
Aug
3.5
Sep
4
Oct
5
Nov
5
Dec

Change criteria

Max Day Temperature (°F)

79
Jan
79
Feb
81
Mar
81
Apr
82
May
84
Jun
86
Jul
88
Aug
86
Sep
84
Oct
82
Nov
81
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

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) | Imperial (°F)