This paper analyzes the thermal performance of three courtyards located in Dos Hermanas (Seville, Spain) simultaneously monitored during five days in the hot period of the year, from 4 June to 9 June. The results show a significant tempering effect in all the courtyards, recording a maximum outdoor-indoor temperature difference up to 11 °C in the courtyard with the best performance and 7 °C in the less favorable one. It is confirmed that deep courtyards perform better, and shadows elements such as vegetation also improve the results, creating a good opportunity to use these elements to easily enhance the performance of existing courtyards.