Is it appropriate to go to Sanya, Hainan after the Chinese New Year? Will it be cold?

I want to know, is it appropriate to travel to Sanya after the Chinese New Year? A: It is best to come in March or April! The Spring Festival this year is in February 14, so the hotel price in Sanya in March is relatively higher than that in April. The temperature is refreshing. Can I wear short sleeves to swim at the seaside? Will it be cold? A: Yes, the sea water is kept at around 23 degrees all the year round, so swimming is no problem. However, it should be remembered that the wind at the seaside is still relatively strong, so it is suggested that friends who swim at the seaside should bring long bath towels, dry their bodies against the sea breeze, and dry their bodies in time after landing, which can not only prevent catching cold, but also keep their skin dry, because the water on the surface is blown dry by the sea breeze. What clothes should I bring if I go? Long clothes? Short? Thick? Thin? The weather is the same all over the country. As long as it doesn't pass Tomb-Sweeping Day, it won't get warmer. So at that time, the temperature difference between morning and evening in Sanya was relatively large. It is recommended to take a thin coat to take precautions. If you have any unclear questions, please consult me again!