One of the most important challenges in geotechnics is the stability of slopes, whether we are talking about natural or artificial ones. The presence of rainwater, i.e., its infiltration into the soil, causes an increase in the groundwater level, which is the most common cause of landslides. This paper presents a laboratory test on a reduced landslide model, which was simulated with different perecipitation intensities. The test was conducted at the Faculty of Civil Engineering in Rijeka as part of the scientific research project "Physical modeling of the behavior of structures for landslide rehabilitation under static and seismic conditions (ModLandRemSS)". The project was financed by the Croatian Science Foundation. In the first cycle, an artificial slope with a 35-degree slope made of fine-grained Drava sand was sprayed with artificial precipitation of a predetermined intensity for a certain period of time during the experiment. In the second cycle, the intensity of precipitation is increased, and the resulting changes in humidity and pore water pressure in the model are recorded using the chosen measuring equipment. In the third cycle, the intensity of precipitation increases again following the resulting changes in measurements. In the last fourth cycle, the intensity is reduced to the amount from the initial cycle, i.e. the first cycle, in order to be able to compare the impact of the resulting changes on the model. The detailed test results are described in the continuation of this paper together with the conclusions reached.