A dishwashing appliance, as provided herein, may include a cabinet, a tub, a pump, a spray assembly, a fluid recirculation duct, and a cold water line. The tub may be housed within the cabinet and define a wash chamber. The fluid recirculation duct may extend from a path inlet to a path outlet to recirculate air within the wash chamber. The path inlet may be defined in fluid communication between the wash chamber and the path outlet. The path outlet may be defined in fluid communication between the path inlet and the wash chamber downstream from the path inlet. The cold water line may extend through the fluid recirculation duct. The cold water line may define a cold water nozzle that is disposed within the fluid recirculation duct to provide a condensing, cold-water flow into the fluid recirculation duct between the path inlet and the path outlet.