The research had the main objective of verifying the predictive power of resilience, of the five great personality factors and stressors of the profession on occupational stress (study 1). It was also the objective to verify the predictive power of teachers stressors on subjective well-being beyond what is explained by personality characteristics (study 2). A total of 209 primary school teachers from public and private schools participated in the study. The results of study 1 revealed that 45 percent of the variance of occupational stress was explained by the study variables. The results of study 2 showed that 7 percent of the variance of life satisfaction was explained by personality traits and 8 percent by stressors of the profession. Affect positive had 26 percent of the variance explained by personality factors and 4 percent by the stressor related to work pressures. Negative affection had 20 percent of the variance explained by personality and 20 percent by teacher stressors. It is concluded in study 1 that, although stressors impact on occupational stress, the personality characteristics can attenuate or elevate the stress. The resilience, even negatively correlating with stress, is not a significant predictor when analyzed with the other variables. In study 2 the results show that the stressors of the profession negatively impact the general subjective well-being, above all, explaining the emergence of negative feelings.