Hawaii has a tropical climate which is tempered a bit by the trade winds that blow over the island. The overall climates of the islands are affected by the mountains and the wind patterns. And Mount Wai’ale’ale, on the island of Kauai, has the second highest average annual rainfall in the world. This makes it important for homeowners to prepare for the effects of heavy rain on their homes. Most of Hawaii has only two seasons, winter and summer.