In developing countries, infrastructure and public transportation systems remain limited, and road traffic accidents are predominantly caused by motorcycles. A major contributing factor to these accidents is risky behavior. Such behaviors can be observed across various demographic groups but are most prevalent among young adults. In public health research, beyond cognitive factors and self-confidence, psychological well-being plays a critical role in the emergence of these behaviors. Additionally, external conditions such as weather also influence the likelihood of engaging in risky driving behaviors. This study aims to explore and synthesize the types of risky behaviors commonly exhibited by motorcycle riders, while also examining whether weather factors, and psychological stressors affect the likelihood of these behaviors. The study utilized data from 122 residents in Vietnam. Analyses were conducted based on frequency and Z-score methods. Results indicate that running red lights, using mobile phones while driving, and not wearing helmets are among the most common risky behaviors. Furthermore, individuals who had near-collisions or actual accidents tend to experience higher levels of stress in daily life.