because Okinawa is located on the southern part of Japan. Therefor the whether is warm and easy to live on. In April, the weather in Okinawa is hotter than Thailand. In the winter would be approximately 20’c.To be travelling to Okinawa, we recommend you to go in the summer, around May to July. Because it will has only few storms, especially you can go sightseeing the changing colors of leaves.