The highest temperature during the day is 27-28 degrees, and it is about 18 degrees at night. Sweaters are not needed, but it is recommended to bring a thin coat, usually short sleeves or shirts, because the weather is getting cold today, and sometimes it will rain lightly, so you can use a coat. Finally, I want to remind you that the temperature difference between day and night in Xichang is large, and it is a bit chilly at night ~ ~