What cities in China are suitable for the elderly to spend the winter?

Sanya, the most suitable city for the elderly in winter in China, is warm to the south of north latitude 18 degrees and cold to the north of north latitude 18 degrees.

Hainan Island is south of the Tropic of Cancer, so the farther south the island is, the higher the temperature will be. In addition, the cold air is blocked by Wuzhishan, and the higher the temperature, the farther south it will be. This is why Sanya, Lingshui and Ledong at the southernmost tip are much warmer in winter than Haikou, Wenchang, Chengmai and Lingao in the north.

One more thing, in summer, the hottest place is not Sanya, just look at the legend below.

This is the highest average temperature in Hainan from March 2065438 to June 2065438. It can be seen that the cities with the highest average temperature in summer are Chengmai, Danzhou, Qionghai and Haikou, while Wuzhishan and Sanya have the lowest average temperature! May and June is the summer in Hainan, and the cities to be cautiously visited in summer are Chengmai, Danzhou and Qionghai!