Kunming has a large temperature difference between daytime and nighttime, especially in spring and autumn. Therefore, in those seasons you should wear a coat or some thicker clothing.
Kunming is also a rainy city, so take an umbrella or other protective rain gear.
Solar radiation is quite strong in Yunnan. Do not forget to take skin care products such as sun-blocking cream, as well as sunglasses and something to shade you from the sun.
Students from outside the Yunnan province may not be adapted to its high altitude. The usual symptoms include a dry throatand shortness of breath when doing strenuous physical activities. These symptoms will disappear in a few days. However, in order to reduce or eliminate altitude sickness, it's best to drink more water and eat lighter foods. If necessary, please see a doctor in the university hospital.