AimThe purpose of this study was to determine gender differences in skin temperature (Tsk) for 21 regions of interest (ROIs) of the body throughout the day in a military sample using infrared thermography. MethodsThe Tsk of 20 male (23.2±2.9yr) and 20 female (20.5±1.3yr) Brazilian Air Force Military members were evaluated with four thermograms collected at 7:00 AM (Tsk7) and 7:00 PM (Tsk19) by a Fluke® thermal camera. The ROIs analyzed included the abdomen and bilateral anterior and posterior views of the hands, forearms, arms, thighs, and legs. Student’s t-tests were performed on independent samples (α=0.05). ResultsWith the exception of the hands, men’s Tsk7 was significantly higher than that of women (p<0.05). However, in the late evening (Tsk19), only the temperatures of the posterior side of the thigh and leg were significantly lower (p<0.05) in women. ConclusionsIn the early morning, men present a greater average Tsk than women across all evaluated ROIs; however, those differences disappear after 12h, except for the posterior thighs and legs. The hands were the sole areas showing similar temperatures at both time points.