May to 10 is the best season for tourism in Sanya. During this period, the temperature is suitable, the sun is shining, there is a warm and humid tropical maritime monsoon climate, and there is a continental climate, fresh air, warm in winter and cool in summer, and beautiful scenery. At this stage, the rainy season in Hainan has concentrated rainfall, and the rainfall is small, and beautiful corals and various tropical fish can be seen. Therefore, it is best to visit Sanya this season.