The airside performance for herringbone fin-and-tube heat exchangers under dehumidifying conditions are reported in this study. A total of eighteen samples were tested and compared. The effects of the number of tube rows, fin pitch, tube size, and wave height were examined in this study. A unique characteristic of the herringbone fin pattern is that the friction factors are strongly related to the number of tube rows. The airside performance of the herringbone fin pattern is strongly related to condensate retention. Based on the present test results, heat transfer and friction correlations, in terms of the Colburn j and Fanning friction factors, were proposed to describe the airside performance of the herringbone fin geometry. The correlation of the Colburn j factor gives a mean deviation of 5.76%, while the Fanning f factor shows a mean deviation of 8.27%.