The current study examined how well affect and daily events predict life satisfaction in 72 college students. Surveys assessing mood, affect balance, health, and sleep quality provided estimates of affect and daily events. The Satisfaction with Life Scale (SWLS) was used as a measure of general life satisfaction. The current results indicated that the SWLS was significantly correlated with feelings of depression, anger, vigor, and confusion, with physical health and frequency of physical illness, with positive and negative affect, and with sleep quality. The predictor variables used in the current study accounted for 54.1% of the total variance of the SWLS. However, only depression, vigor, confusion, frequency of illness and negative affect were significant predictors of life satisfaction in both a standard regression model and in a hierarchical forward regression model. More practically, an increase in subjective life satisfaction was predicted by decreases in depression, decreases in negative affect, decreases in the frequency of illness, and increases in vigor. These results indicate that judgements of life satisfaction, as measured by the SWLS, were significantly predicted by affect and daily events.