Lahaina Weather in May

The climate in Lahaina during May can be summarized as warm, humid and reasonably dry.

May is in the spring in Lahaina and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (80°F), whilst at night 18°C (64°F) is normal.

On average May is the 5th driest month of the year in Lahaina with around 63mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

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