Two datasets include self-report data from (a) a cross-sectional psychometric study (N = 139) and (b) a 21-day daily diary study (N = 263) of emerging adult drinkers. Questionnaires contained information on perfectionism, reinforcement sensitivity, big five personality traits, alcohol consumption/problems, binge eating, social support, emotions, social anxiety, and drinking motives. Daily data were analysed using multilevel structural equation modelling. These data can be used to examine relationships related to personality, emotions, and alcohol consumption, including changes from day-to-day in many variables.