The study aims to analyze the seasonal averages of maximum temperatures during the winter, spring, summer and autumn seasons, and to determine their spatial variation using modern geographic techniques, as well as to establish a digital geographic database for average maximum temperatures in Thi Qar Governorate located in southern Iraq between two latitudes (331" 33" 30") °) and (37" 00' 32°) N, arc longitudes (12" 38' 45°) and (38" 10' 47°) E. The study relied on climatic cycle data (33) years divided into three periods, and in processing and analyzing it adopted the inductive method and the technical method (GIS) in analyzing climate data. Al-Khartiyya has five thermal regions that have undergone shifting, as thermal regions recede and others increase in the study area. In general, it became clear that temperatures increase (shift) in every season of the year in the direction from the south of the study area to its north.