I'm going to study in Haikou. I want to know what the weather is like in Haikou in winter, what the temperature is like and what clothes I usually wear. Thank you in advance, please tell me the truth.

Haikou city is located in the northern edge of the low latitude tropical zone, and belongs to the tropical maritime monsoon climate. It's warm in spring with little rain and much drought, hot and rainy in summer with many typhoons and rainstorms, cool and comfortable and rainy in autumn, and cold air coming in winter with chill. The sunshine time is long all year round, and the radiation energy is large. The annual average temperature is 23.8℃, the highest average temperature is 28.6℃, and the lowest average temperature is 17.7℃. The highest extreme temperature is 38.7℃, and the lowest is 4.9℃? Rainy days are about 150, mainly in summer, mainly in hot thunderstorms in the afternoon, and occasionally typhoons approach or land to bring heavy rain. Annual average evaporation 1834 mm, and average relative humidity is about 85%. The wind direction is mainly southeast wind and northeast wind all the year round, and the south wind and southwest wind are mostly blown in early summer and midsummer.

The following is the recent weather forecast (for reference):