When can Hainan Lingao swim in the water?

Lingao County in summer is a county directly under Hainan Province and an important part of Beibu Gulf urban agglomeration. Located in the northwest of Hainan Island, it is adjacent to Chengmai County in the east, Danzhou City in the southwest, Beibu Gulf in the northwest, Qiongzhou Strait in the north and Leizhou Peninsula across the sea. The county government is located in Lincheng Town, 83 kilometers away from Haikou, the provincial capital. In Lingao County, the weather is hot in summer and the water will get warmer, which is suitable for swimming.