Is it hot enough to wear short sleeves in Haikou, Sanya in mid-February?

The temperature in Haikou is much lower than that in Sanya and slightly hotter than that in Shenzhen. Need a coating.

In Sanya, the seaside is cold in the morning and evening, so it is necessary to wear long sleeves or thin coats, and short-sleeved shorts are basically used during the day.

Haha, it happens that I have lived in Shanghai for ten years.

It can be said that Sanya is not as hot as Shanghai in summer, nor as cold as Shanghai in spring and autumn.