Summer
Beginning in June and ending in August, the Korean summer is hot and humid, with average mean temperatures peaking at 25.7 degrees Celsius in August. The Korean rainy season, or jangma, begins in mid-June and continues for about a month. Compared with some other countries that experience monsoon, however, the rains are not especially heavy, with monthly precipitation peaking at 383 millimeters in July. Green spaces in Seoul such as parks and mountains become especially verdant due to the moisture. Popular summertime activities in Seoul include biking, swimming, in-line skating, and windsurfing on the Hangang River.