The surface tension of dimethyl ether has been measured with a differential capillary rise technique. Thirty-two experimental data points have been obtained in the temperature range from (213 to 368) K. The uncertainty of temperature is less than +/-10 mK (ITS-90). The uncertainty of surface tension measurements was estimated to be less than +/-0.2 mN(.)m(-1). The results were correlated as a function of temperature.