Chinese climate is dominated by monsoon winds, and experiences clear temperature differences in summer and winter. There are two monsoons which affect China, these are; the southeast and the southwest monsoon. The southeast monsoon, originating from the Pacific Ocean is the most important monsoon which dominates China’s climate, affects most parts of China. In summer, rainfall is common due to the southerly winds from the sea at lower, which accounts for most of the annual rainfall in China. In winter, northerly winds coming from high latitude areas, mainly Siberia and Mongolia are cold and dry, meaning rainfall is uncommon during this period.