An image pickup apparatus capable of recording temperature information on a subject appropriately narrowed down as a target. The image pickup apparatus acquires a visible light image and an invisible light image, acquires a detection result(s) by detecting a subject(s) on a basis of the visible light image, acquires an identification result(s) by identifying, on a basis of the visible light image, type(s) of the detected subject(s), determines whether to record temperature information of a subject on a basis of the detection result and the identification result, wherein in a case where it is determined to record the temperature information of a subject, the temperature information of the subject as a determination target in the determination is acquired on a basis of the invisible light image and the detection result, to record the acquired temperature information on a recording medium.