Spring (March to May): The weather in Qinghai gradually warms up in spring, but the temperature difference between morning and evening is still large. At this time, the temperature fluctuates greatly, so it is necessary to increase or decrease clothing in due time. There is relatively little precipitation in spring, but mountainous areas and river valleys may have some precipitation due to topography. UV rays are strong in Qinghai in spring, so it is recommended to carry a wide-brimmed hat and sunglasses to protect your head and eyes. Meanwhile, spring is also a windy season, so it is recommended to choose clothes and shoes with better windproof performance.

Summer (June to August): Summer in Qinghai is relatively short, but temperatures are moderate and cool. The average summer temperature in Xining, the provincial capital, is only 16.9 degrees Celsius, and even in July, the maximum temperature averages only 25.3 degrees Celsius, making it a popular destination for summer vacation. Summer precipitation is relatively high, but the overall climate is still relatively dry. Due to the high altitude, low temperature and dry air, Xining and other places have fewer mosquitoes in summer, providing a more comfortable environment for tourists.

Autumn (September to November): In the fall, Qinghai has suitable temperatures, with an average temperature between 10°C and 20°C. It is relatively dry, with more sunny days. This is the best time to enjoy the beauty of the Qinghai Plateau, as the grasslands become golden yellow and the lakes become more turquoise blue in color. Precipitation begins to decrease in the fall, but autumn rains may still occur in the mountainous areas. There is a big temperature difference between morning and evening in the fall, so you need to add more clothes to protect yourself from the cold. Meanwhile, as Qinghai is located on a plateau with high altitude, it is easy to cause symptoms of high altitude sickness, so tourists need to take precautions in advance.

Winter (December to February): Winter in Qinghai is very cold, with an average minimum temperature of -20℃ and a maximum temperature of -7℃. Winter temperatures in Xining, the provincial capital, usually reach -15 degrees Celsius as well, sometimes even more than -20 degrees Celsius. Temperatures are even lower at higher altitudes. There is more snowfall in the northern and mountainous regions of Qinghai in winter, which is favorable for skiing and other winter sports. In winter, Qinghai is dry with little rain (snow) and many sunny days, but the cold and dry climate brings some inconvenience to people's life and traveling. Tourists must take precautions against the cold and keep warm when traveling to Qinghai in winter.