Rincon is an unincorporated community in San Diego County, California, United States.

[2] Its elevation is 1030 feet above sea level.

Its coordinates are 33 degrees north, 117 degrees west.

[3] The community is located near the Rincon Indian Reservation, from which the name is derived.

According to the Köppen Climate Classification system, Rincon has a warm-summer Mediterranean climate, abbreviated "Csa" on climate maps.