San Clemente Island

San Clemente Island (Tongva: Kinkipar; Spanish: Isla de San Clemente) is the southernmost of the Channel Islands of California. It is owned and operated by the United States Navy, and is a part of Los Angeles County. It is administered by Naval Base Coronado. It is long and has of land. The 2018 census estimates 148 military and civilian personnel reside on the island. The city of San Clemente in Orange County, California is named after the island. Geography Topography Geologically, the island is described as being "the upper part of a tilted and gently arched northwestward-trending block of the earth's crust that has a straight, steep northeastern slope and a more irregular and much gentler southwestern slope" that is composed primarily of volcanic rock, with the northeast boundary of the island having a large fault that parallels most of the major faults on the California mainland. San Clemente Island has some of the best examples of marine terraces, and has trench-like canyons, streams, periodic waterfalls, and pools of fresh water. Climate This region experiences warm and dry summers and moderate mild falls and winters with no average monthly temperature above 21 °C (69.5 °F). According to the Köppen Climate Classification system, San Clemente Island has a warm-summer Mediterranean climate, abbreviated "Csb" on climate maps.