What's the weather like in Xiamen in early February?

Now the climate there is autumn. Some people wear two clothes, others wear one, but some locals wear slippers barefoot. I'm going to wear a thin sweater, because I'm afraid of cold, and it's very hot during the day, but the temperature difference between morning and evening is big. I brought the wrong clothes. I brought a bunch of short sleeves and didn't put them on. I haven't checked it properly before. I suggest you call the hotel two or three days in advance to ask about your clothes before making a decision. Also, don't buy things in busy places, it will definitely be expensive, and it will be much cheaper if you stay away from busy scenic spots.