People from the north are going to settle in Hainan. Will they be able to adapt to the summer weather?

I am not a native of Hainan, but I have been to Hainan in spring, summer, autumn and winter. Let me give you an objective view. In Hainan's summer, the sun is exposed during the day and it is not too hot at night. Hainan is an island, the air circulates quickly, and you don’t feel too wet. The island is surrounded by the sea. The sea water is very deep and the water temperature does not change too much in winter and summer. The water temperature has a regulating effect on the air temperature, so it does not feel stuffy. In addition, the heat in summer is much better than that in the furnace cities on the mainland. The biggest climate advantage is that it is not cold in winter. Like spring in the central provinces of the mainland. If you really want to settle in Hainan, I suggest you go to Hainan for a short stay in the summer to experience it. How can you easily decide on such a big thing as settling in Hainan without personal experience?