A new and distinct cultivar of Poinsettia plant named ‘PER1409’, characterized by its uniform, upright and mounded plant habit moderately vigorous growth habit freely and upright branching habit dark green-colored leaves under natural season conditions, plants flower on or about November 17 in Southern California large inflorescences with light yellow and peach-colored flower bracts with dark pink-colored flecks and spots and good post-production longevity.