Abstract. Laboratory studies have linked variability in temperature to the psychology of social affiliation. In colder ambient environments, for example, people report greater loneliness, and they pursue both physical warmth and social affiliation (i.e., social warmth). Here, a field experiment tested whether tactile warmth eliminates the effect of colder ambient temperatures on desires for social affiliation. Consistent with previous research, people expressed greater intentions to affiliate on colder days. However, tactile warmth eliminated this effect. On colder (but not warmer) days exposure to a tactile warmth manipulation eliminated heightened desires for social affiliation. Findings suggest that seemingly subtle changes in temperature can have important implications for the psychology of social affiliation, and such findings apply to real-world contexts outside the laboratory.