Located on an island off the Korean Peninsula, Jeju has mild, warm weather during much of the year.

[2] Jeju welcomes over ten million visitors every year, mainly from the South Korean mainland, Japan, and China.

In 2012 Sang-Oh Kim became mayor; he was formerly the Jeju regional president of National Agricultural Cooperative Federation.

[9] Due to its central position in transportation, Jeju City sees the main share of tourist traffic to the island.

These include Dragon's Head Rock (Yongduam [ko]) along the coast; the Samseonghyeol, three holes in the downtown area; Hallasan National Park in the interior; the country's tallest mountain, Hallasan; and world's largest botanical garden, Bunjae Artpia.

[12][13] The island Udo, one of Jeju's most popular tourist attractions, is located off the city's east coast.

[16] Seongsan Ilchulbong, an unusually bowl-shaped mountain, is popular for seeing the first sunrise of the year.

[24] Jeju City has a humid subtropical climate (Köppen: Cfa) with very warm summers and cool winters.

In Holdridge classification, Jeju City has a warm temperate moist forest climate.

Precipitation is significant throughout the year, but is much wetter in summer, with more than 180 millimetres (7.1 in) of rain falling in each month from June to September.