A temperature measurement apparatus for measuring a temperature profile of a substrate mounted on a rotating table, including a radiation temperature measurement unit configured to measure the temperature of plural temperature measurement areas on a surface of the rotating table in a radius direction of the rotating table by scanning the surface of the rotating table in the radius direction; a temperature map generating unit that specifies the address of the temperature measurement area based on the number of the temperature measurement areas measured by the radiation temperature measurement unit for each of the scanning operations in the radius direction of the rotating table, and the rotating speed of the rotating table, and stores the temperature in correspondence with the corresponding address in a storing unit; and a temperature data display processing unit that displays a temperature profile of the rotating table.