Wailua Weather in August

The climate in Wailua during August can be summarized as hot, humid and very wet.

August is in the summer in Wailua and is typically the warmest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 22°C (72°F) is normal.

On average August is the 6th wettest month of the year in Wailua with around 301mm 11.9 inches of rain making it a very wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.9 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 August 2025.