A dedicated experimental facility was designed for reproducing and visualizing Marangoni convection in a wide range of solution temperatures representative of the operative conditions of different absorption systems. Experimental measurements of the absorbed vapour mass were conducted with and without surfactant additives, which trigger Marangoni convection. A methodology was devised for ensuring coherence in the mass fraction condition of the solution while generating different solution temperatures. Parallel visualization of the phenomenon with fluorescent uranine and UV lights enabled the observation of the intensity of the interfacial turbulence and thickness variations due to Marangoni convection. The study has newly demonstrated and quantified the research hypothesis that the intensity of Marangoni convection weakens at higher operative temperature and suggest the existence of a temperature limitation where the interfacial turbulence does not occur. Correspondingly, a 2-dimensional numerical model able to reproduce the characteristics of the phenomenon in the same range was constructed and validated. These finding are critical for the scientific clarification of Marangoni convection phenomenon and for its technical application within absorption thermal systems. The developed model may accordingly guide the design of these systems for taking maximum advantage from this phenomenon.