© 2016 Elsevier Inc. Objectives The highest suicide rates occur after psychiatric hospitalization or soon after discharge. In addition to other factors, personality traits have been suggested as predictors of suicide attempts (SA) after first episode psychosis (FEP). In this study we examined their temporal pattern and the influence of personality traits on first suicide attempts (fSA) during one year after FEP. Method One-year follow-up of 65 FEP patients. Bivariate and multivariable analyses were performed to explore the relationship between personality traits and fSA. This analysis was also adjusted for a set of sociodemographic, clinical and psychopathological variables. Results fSAs in the six months following FEP were predicted by higher scores in passive-dependent personality traits (OR = 2.42, 95% CI = 1.15–5.09) and severity of symptoms at onset (OR = 2.00, 95% CI = 1.07–3.76). Severity of symptoms at onset (OR = 2.71, CI = 1.15–6.39) was the most significant predictor of fSA from six to twelve months after FEP. Seventy percent of fSA occurred during the first six months after FEP, decreasing considerably afterwards. Conclusions Our study suggests that personality traits play a role in fSA after FEP. Specifically, passive-dependent personality traits emerged as a predictor of fSA in the six months following FEP. Severity of symptoms at onset predicted early and late first suicide attempts. We also found that risk of fSA is highest during the six months following FEP. These results can contribute to the implementation of prevention program.