When does South Korea receive most of its annual rainfall?

South Korea receives the majority of its annual rainfall during the summer months, specifically from June through August. During this period, the country experiences the summer monsoon, which accounts for up to three-fifths of its total annual precipitation.1

While the distribution of rainfall is more even in the extreme south, the rest of the country relies heavily on these summer months for its water supply. Additionally, the southern coast may experience heavy showers and storms in late summer due to tropical cyclones, also known as typhoons.1