Of late, surfaced reports of ethical breach by teachers has led to a worrying decline in teacher's competency. Added to this was another report by Berita Harian Online that revealed around 4.4 percent of teachers are experiencing a medium to a high level of stress. The main contributor to this situation is an unhealthy school climate that threatens to disrupt teachers' performance in school. Further, there are insufficient studies on school climate and how it affects teacher performance in Malaysia. It is logical that an investigation on this matter should be carried out. Thus, quantitative research was conducted to explore the link between school climate and teachers' performance. Respondents for this study were made up of primary school teachers in Selangor. Research data was gathered using a set of a questionnaire answered by 381 subjects. The data was then analyzed using inferential statistics using the Statistical Package for Social Sciences (SPSS) version 23 software. Findings from the data analysis yielded only one dimension that had a significant relationship with teachers' performance, which was the decision making dimension. The results from this study suggest robust initiatives are needed to increase decision-making skills among primary school teachers, as this aspect plays a significant role in improving teachers' performance.