Which direction do summer monsoon winds usually blow across the East China Sea?

During the summer months, the monsoon winds across the East China Sea blow predominantly from the southeast.1

This wind pattern is driven by the intense heating of the Asian landmass during the summer, which creates areas of low pressure over the continent. These winds draw warm, moist air from the western Pacific Ocean toward the mainland, resulting in a rainy season that is often accompanied by typhoons. In contrast, these winds reverse during the winter, blowing from the north and bringing cold, dry air from the Asian continent.123