I don't know which mainland city you are from. Generally, in winter in Taiwan, the coldest period is in January. The temperature at the coldest time in the northern region is about the same as that in Shanghai in early and mid-November, and the temperature in Guangzhou now (December). You need to prepare thin and thick cotton coats. one piece. In the southern region, the temperature in the coldest winter period is generally above 15 degrees, and it can basically maintain more than 20 degrees during the day. For Shanghai, the temperature is almost the same as before and after the National Day. Thick coats can be put away, and thin coats are fine. Short sleeves and skirts are still unsuitable. In winter in Taiwan, the wind is not small, and the temperature is high but the body does not feel warm. <br/><br/>I think the down jacket may not be enough. I think the definition of cold in Taiwan is different from that in mainland China. When I went to Taiwan in early November, I wore short sleeves for most of the time. During that time, the temperature was basically 20-25 It's not that cold, but I found that Taiwanese people are basically wrapped in thick coats outside. <br/><br/>Just browse the website of the Taiwan Central Meteorological Bureau before leaving, and you can check the 7-day weather forecast. <br/>http://www.cwb.gov.tw/V7/index.htm<br/><br/>Hope the above is of reference value for you, thank you