A new and distinct Petunia cultivar named ‘;KERTEAMORN’; is disclosed, characterized by a spreading, free-branching growth habit, and bi-color medium pink flowers with a large white eye and thin light pink flower rim. Flowering begins under short day conditions. The plants flower abundantly and are more tolerant to rain than the average Petunia. The new variety is a Petunia, normally produced as an outdoor garden or container plant.