Recently obtained results in the classical limit of the maser model allowing for a simple geometrical interpretation of superradiance phenomenon are generalized here for finite temperatures. Moreover, both integrable and non-integrable finite-temperature dynamics are studied in the classical limit. The fixed points are calculated as well as their stability conditions. Bifurcation of equilibria are shown to occur in the dynamical context, and the role of the temperature is shown to be of suppressing the transition by means of weakening of the coupling between the atoms and the field.74479488