Hāna Weather in May

The climate in Hāna during May can be summarized as warm and very wet.

May is in the spring in Hāna and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 15°C (60°F) is normal.

On average May is the 5th wettest month of the year in Hāna with around 427mm 16.8 inches of rain making it a very wet time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.8 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 Hāna in May 2025.