I think what you need to prepare is to call when Tianchi will be closed. Is it open on November? You will get a surprise answer. I'm here anyway. Wait until the day God is in the mood.
Put on long johns and down jackets. It was snowing in Tianchi, and the temperature was more than ten degrees Celsius. The wind on the mountain prepares hats, gloves and scarves.
Definitely bring a down jacket! On the 27th, it was temporarily closed because of the heavy snow in Tianchi! It's windy and cold on the mountain. The temperature at the bottom of the mountain is also very low now. The lowest temperature in the whole day is one degree, and it is only three degrees in the early morning.
The temperature in Changbai Mountain is actually acceptable. It’s not too cold, but the wind on the top of the mountain is a bit strong. I don’t think it’s enough to wear a down jacket. Of course, a jacket is a must. If you’re afraid of the cold, you can bring a liner. As for gloves, hats and scarves, it should not be too much. It only takes an hour to see Tianchi. Other places, such as underground forests, are not high in altitude and there is no strong wind. Relatively speaking, you don’t need to wear too much. If you are satisfied, please click "Accept as Best Answer" in the lower right corner of the answer, thanks