Wailua Weather in May

The climate in Wailua during May can be summarized as warm, humid and very wet.

May is in the spring in Wailua and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a muggy 26°C (78°F), whilst at night 20°C (68°F) is normal.

On average May is the 6th driest month of the year in Wailua with around 296mm 11.7 inches of rain making it a very wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.3 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 Wailua in May 2025.