A movable body comprising a monitoring device configured to monitor a surrounding environment of the movable body through a window member, a heating device configured to heat a portion of the window member within a monitoring area of the monitoring device, an air conditioning device, and a control device, wherein operation modes of the control device include a first mode in which both the heating device and the air conditioning device are driven, and a second mode in which the driving force of the air conditioning device is smaller than that in the first mode, and the control device evaluates the degree of fog on the portion of the window member and determines one of the operation modes based on the result of evaluation.