Dyadic coping has repeatedly been associated with positive outcomes in intimate relationships. However, less is known about the prospective predictors of dyadic coping. This study investigates clarity of other's feelings (CoF) as a potential predictor of supportive dyadic coping in a longitudinal study. In a sample of 368 couples, self‐reported CoF and supportive dyadic coping perceived by the partner were assessed annually over 3 years. Results revealed that interpersonal differences in men and women's CoF are positively associated with interpersonal differences in supportive dyadic coping. Moreover, interpersonal differences in men's CoF predicted long‐term intrapersonal changes in supportive dyadic coping of both partners. Couple intervention programs might strengthen couple's dyadic coping skills by targeting men's understanding of their partner's feelings.