The aim of the study is to determine the level of relationship between school climate and happiness according to student perceptions. This research is in the descriptive relational survey model. The sample of the study consists of a total of 539 students studying in public primary schools in the districts located in Ankara, the capital city of Turkey, in the 2021–2022 academic year. In the study, two different scales were used to determine the relationship between school climate and happiness according to student perceptions. In the study, it was concluded that students’ perceptions of school climate and school happiness were high. In addition, as a result of the relationship analysis between school climate and school happiness, it has been found that as the level of school climate increases, the level of school happiness also increases. Academic, social and artistic activities can be enriched in order to create a high school happiness that can occur with a positive school climate. The results of the research indicated that school climate predicted and affected school happiness.