Hawaii water temps in April?

[gargoyle999]

Wondering if I should invest in a wetsuit for a cruise to Hawaii in April. We'll be doing snorkeling at least 3 days we are there.

[bruce-r]

In my experience diving there, the water temps are cooler there than in the Caribbean. I'd expect temps in the mid 70's F. A wetsuit, even a 1 mm, is a great idea. In addition to thermal comfort, you get UV protection that can't wash off along with physical protection.