The main objective of this research is to investigate the relationship between skin temperature changes, empathy and moral behaviour through the application of thermography. We recorded the skin temperature changes that occur during the presentation of one personal and one impersonal moral dilemma to high and low-empathy participants. The time needed to make this moral judgement was used as an indicator of the cognitive style of the participant: intuitive thinking (emotional) or deliberate thinking (utilitarian or logical). The main results were as follows: Large temperature changes occurred in high-empathy participants (overall in the personal dilemma) that could be understood as a skin representation of emotional judgements. These participants also tended to make non-utilitarian judgements. On the other hand, the low-empathy participants tended to make utilitarian judgements, and this study found that their change in skin temperature was almost always non-significant. The findings are discussed on an emotion-based description of moral dilemmas: