Is it cold to travel to Yunnan in January?

I think it is cold to travel to Yunnan in January

1. Yunnan is in winter in January, the weather is a bit cold, so you need to wear a down jacket to keep warm.

2. If you travel to Yunnan in January, you need to take measures to keep warm to cope with the lower temperature.

3. You can choose to bring a thermos cup and other supplies.