A transmitting apparatus includes a rate adjusting unit, a changing unit, a buffer control unit, and a transmitting unit. The rate adjusting unit adjusts a transmission rate of transmitting data. The changing unit changes a size of a buffer for temporarily storing the data, on the basis of the transmission rate. The buffer control unit configured to cause the buffer to temporarily store the data, which is smaller than or equal to an addable size that is smaller than the size of the buffer, and to output the data to the transmitting unit. The transmitting unit transmits the data output from the buffer.