In this work, hourly demand curves (CVHD) are obtained in the water distribution network in the downtown area of the City of Ensenada, B.C., Mexico. For this, hourly historical records of the hydraulic stays and inlet flows in the Morelos tanks and the Keki tank were obtained. With this, average hourly supply flows were estimated for each day of the week, then average demand flows were calculated for each hour of the day, allowing a graph of the CVHD supplied by each tank to be obtained. It was found that the peak demand for the Morelos tanks occurs at 9 hours with a flow of 378 lps, while the minimum demand occurs at 3 hours with a flow of 170 lps. In the Keki tank, the peak demand occurs at 12 hours with a flow rate of 80 lps, while the minimum demand is also generated at 3 hours, but with a flow rate of 33 lps. Finally, the CVHD obtained are very useful in hydraulic models for the review and analysis of operational improvement in drinking water networks.