Proper water management is crucial for increasing agricultural productivity and optimizing the region’s water usage efficiency. The objective of this study was for estimating the irrigation water requirement, reference and crop evapotranspiration and irrigation schedule for potato in Çukurova region over a 31-year period (1990–2020) using the CROPWAT model. To ensure appropriate water utilization and planning, information regarding the climate data was obtained from the Adana station of Turkish State Meteorology Service. The soil and crop data were sourced from Turkey’s directorate of agricultural research and policies. The dates, amounts, effective rainfall, and net irrigation requirement (NIR), for rainfed and different irrigated conditions were all calculated using the CROPWAT 8.0 model. The findings indicated that the average reference evapotranspiration (ETo), crop evapotranspiration (ETc) for potato and effective rainfall were 238 mm, 309 mm, and 209 mm respectively. It was also estimated that the dates of irrigation after planting (DAP) were 66 days, 86 days, 120 days and 141 days, with irrigation interval of 20 days. The total quantity of water utilized for irrigation throughout the growing season at critical depletion and user defined were 134 mm and 108 mm respectively, thus 26 mm of water was saved (19%). The results of this study show that intelligent systems can be used for estimating evapotranspiration and irrigation scheduling.