The urban climate is understood as a modification resulting from and introduced in the environment by its urban structure and by the human activities that occur in cities. Its contextualization related to the occupation and planning of urban space leads to new climate patterns, which can transform the environment in which cities are inserted and the thermal comfort of populations. Once the urban climate is modified, it has consequences both on the energy performance of constructions and on environmental issues inherent to the development of urban centers arising from both civil construction and disorderly urban expansion. According to the field of research that studies and evaluates these issues, energy efficiency and environmental performance are directly linked to climate factors, and their improvement provides for a multidisciplinarity between the understanding of the urban climate,human action, energy sustainability and the climate phenomena to bring about a transformation in city and construction projects with the common objective of effectively improving the problems arising from these interactions.