Hon. Obiri started school in Nyamagwa Boys primary school from the year 1969-1974. He then went ahead to join high school at The Aga Khan High School, Mombasa in 1975 where he sat his East Africa Certificate of Education Division 1. He then went to Chogoria Boys’ High School from 1978-1979 where he sat his Kenya Certificate of Advanced Education 3 Principals and 1 Subsidiary. He pursued a Bachelor of Arts Degree in Building and Economics at University of Nairobi from 1981-1985.