The investigation has been carried out to view the effect of rainfall in soils. The non-uniformly motion has been considered. The raindrop affects the soil dynamics and generates fracture. The Pressure head analysis, water content distribution, raindrop affect with various time domains has been done with Matlab. A proper case study has been done by taking sandy loam. Total head, effect on concentration, velocity profile (fluid motion in soil) can be viewed. The run off rate has also been calculated for different rainfall. The estimated analysis of rainfall on infiltration process has been shown graphically as well as in table.