Oto Rimele was born in Maribor. He studied painting under Professor Emerik Bernard at the Academy of Fine Arts in Ljubljana. He graduated in 1990. He continued his studies with a specialization in painting under Professor Janez Bernik, and completed it in 1992.
In 2004, he won the Prešeren Fund Award for his exhibition Illuminations at the Božidar Jakac Art Musem in Kostanjevica na Krki in 2003.