Kailua Weather in May

The climate in Kailua during May can be summarized as hot and wet.

May is in the spring in Kailua and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 28°C (83°F), whilst at night 20°C (69°F) is normal.

On average May is the 5th driest month of the year in Kailua with around 178mm 7 inches of rain making it a wet time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.3 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Kailua in May 2025.