An imaging apparatus includes: an imaging device which is configured to perform a photoelectric conversion of collected light; a selection unit which is configured to select output signals from pixels belonging to a predetermined pixel area of the imaging device; a dark current-calculating unit which is configured to calculate a dark current value based on a difference between the output signals in a predetermined set; a temperature-calculating unit which is configured to calculate a temperature of the imaging device from the dark current value; and an inspection unit which is configured to inspect whether or not a temperature measurement state is normal based on temperatures calculated for a plurality of exposure times for the imaging device by the temperature-calculating unit.