Is it cold to wear short sleeves at 22 degrees during the day in Sanya in winter?

Not cold. Because there is no cold wind in winter in Sanya, there are only soft sunshine and cool sea breeze. When the temperature reaches above 20 degrees, the human body will feel very hot. Wearing T-shirts, shirts or shorts at 22 degrees during the day in Sanya will make people feel very comfortable, so it is not cold to wear short sleeves at 22 degrees during the day in Sanya.