In China, a vast land spanning many degrees of latitude with complicated terrain, climate varies radically.

China has a climate dominated by dry seasons and wet monsoons, which leads to clear temperature differences in winter and summer. In winter, northern winds coming from high latitude areas are cold and dry; in summer, southern winds from sea areas at lower latitude are warm and moist.

China climates differ from region to region because of the country's extensive and complex topography. In the south of the Nanling Mountains, rains are prolific and the temperature is high all year round. In the Yangtze and Huaihe river valleys in the central part of China, there are four distinctive seasons. In northeast China, summer is short but there is much sunshine, while winter is long and cold. Precipitation is limited in northwest China where it is cold in winter and hot in summer. In southwest China of low latitudes, the land is elevated high, and has characteristically vertical seasonal zones.

April, May, September and October are the peak tourist months at China's most popular destinations when the weather is the most comfortable. Prices drop a bit in the shoulder season, which runs from November through March and from June through August. However, the winter months are peak season for trips to China's Hainan Island and to the Northeast Harbin for its world-famous ice-lantern festival. This month are also packed with New Year holidays, Chinese Spring Festival and other national or local happy fairs.  Summer months are great time to explore China's Far East-Manchuria.