Janez Šibila was born in Nova vas pri Markovcih. In 1940, he enrolled to study sculpture at the Academy of Fine Arts in Zagreb. Two years later, he went on to study painting at the Academy of Fine Arts in Vienna, and then continued his studies under Professors Božidar Jakac and Gojmir Anton Kos at the Academy of Fine Arts in Ljubljana. He graduated there in 1948.
He specialized in painting under Professor Gabrijel Stupica in 1950. In 1978, he won the Prešeren Fund Award for his retrospective exhibition.