The present study investigated the relationship between personality and Subjective Well-Being in a sample of 135 Salvadorian adolescents and young adults (age mean = 21.88 sd. = 4.70). Personality was assessed through self-reports using the Temperament and Character Inventory-Revised. Subjective Well-Being was also self-reported using the Positive Affect Negative Affect Schedule and the Satisfaction With Life Scale. Structural equation modeling was used to determine relationships between personality and Subjective Well-Being. Regarding temperament dimensions, Harm Avoidance was positively associated to negative affect and negatively associated to positive affect, while Persistence was positively associated to positive affect. Regarding character dimensions, only Self-directedness was related to Subjective Well-Being: positively related to life satisfaction and positive affect. The results presented here mirror findings using the temperament and character model of personality among European and North American adolescents. (C) 2013 The Foundation for Professionals in Services for Adolescents. Published by Elsevier Ltd. All rights reserved.