A theoretical analysis of the surface velocity and surface pressure distributions along an elastic insoluble monolayer in the nonsteady region following the end of a continuous monolayer compression was developed. The surface pressure distribution in the nonsteady regions at the beginning and after the end of the compression of a pentadecanoic acid monolayer was experimentally studied. The behavior of the experimental surface pressure variations with time and distance to the moving barrier are in a good agreement with the theoretical description for bath nonsteady regions.