It is worth pointing out that learning a foreign language in a multicultural context is a long and complex undertaking. Several factors influence whether or not English as a Foreign Language (EFL) students can accurately perceive and produce the foreign language. These variables can potentially contribute to the success and, or failure in learning and acquiring a foreign language. Given the Moroccan educational system, the research provided minimal insight into the relationship between those factors and language achievement. The present study’s aim, therefore, was to investigate the environmental factors that affect students’ academic performance. It also aimed to find out how these variables affect students’ academic achievements. To achieve this aim, data have been collected via open-ended questionnaires, and interviews addressed mainly to First Year Students of Master Programs, Department of English, FLDM, USMBA-Fez. The findings have shown that students’ academic achievements were significantly positively/negatively linked with the environmental factors, namely societal, home/family and school/classroom variables. The findings also revealed that the more highly sophisticated the social environment is, the more likely it is to foster EFL students’ academic achievements. In addition, the more similarity exists between the students’ cultures, the more successful the learning is. This study also showed that the development of EFL proficiency is a product of contextual factors influence. As such, the study concludes with several implications that brought up for possible effective change in the future to enhance the learning environment atmosphere, boost students’ academic achievements, and, therefore, achieve better results.