In adapting urban areas to climate change, green areas constitute a precious capital due to the improvement in thermal comfort and energy saving. In order to provide a decision support tool based on the relationship between the green network and urban features, this study proposes a method for (i) defining the sections of urban territory affected by the cooling effects due to the presence of green spaces, because of settlement characteristics and (ii) localising the areal, punctual and linear elements of the green network.