Introduction: Street harassment represents a pervasive form of violence that undermines women's freedom, safety, and psychological well-being. Its normalization has contributed to the limited research on its prevalence and psychological consequences, particularly within European contexts. Beyond individual experiences, ideological factors, such as sexist beliefs and tolerance toward inequality, are key factors in maintaining this social problem. Purpose: The present work examined the prevalence, contextual characteristics, and psychological consequences of street harassment, as well as the influence of sexist attitudes on its occurrence and perception, drawing on evidence from complementary quantitative and qualitative data collected from women in Spain. Method: Data were collected from nearly 250 women through survey-based measures assessing harassment prevalence, anxiety, fear of rape, avoidance behaviours, and self-esteem, alongside qualitative daily-diary records from over sixty participants, documenting daily harassment experiences, emotional reactions, and coping strategies. Validated instruments were used to assess sexist beliefs and related variables. Results: Street harassment was highly prevalent: most women reported experiencing it at least once in their lives, and many on a monthly basis. Quantitative analyses revealed significant associations between harassment frequency and higher anxiety, fear of rape, and avoidance, as well as lower self-esteem. Qualitative data highlighted feelings of discomfort, anger, and insecurity, showing that most coping strategies were passive. Sexist ideology influenced the perception and normalization of harassment but appears not to reduce its psychological impact. Conclusions: Findings underscore the need to address street harassment as a serious form of violence affecting women's psychological health and everyday freedom. Tackling its ideological roots through education, awareness, and applied psychological interventions is essential for promoting equity, supporting sustainable well-being, and fostering safer, more equitable public spaces for women.