A display apparatus includes: an obtaining unit that obtains, from an illuminance sensor, a detected illuminance which is an illuminance at a dashboard of a vehicle detected by the illuminance sensor; an estimating unit that estimates, using the detected illuminance, an estimated illuminance which is an illuminance at a position near the head of a driver sitting in a driver's seat of the vehicle; a determining unit that determines brightness of a video, using the estimated illuminance and relationship information indicating a predetermined relationship between illuminance and brightness; and a displaying unit that displays the video at the brightness determined by the determining unit.