The theme of the work is " Stormwater surface runoff in urbanised area of Terchová municipality ". At the beginning of the work I deal with the problem of climate changes. I define the biggest problems of climate impacts in Europe and Slovak. Next I mention inpacts of climate changes to settlement area, hydrology of river basin and folloving their inpatcs on solved sewage system. Other part of my work is simulation of extreme raining processes impacts on defined sewage system in village Terchova by the program SWMM. I characterize interest area, its geological structure, climatic conditions, hydrology of interest area and also the joint sewage system of village. I specified four rain showers, which are needed for the calculation. At the end I evaluated inpacts of rain showers on the joint sewage system, impact on its functionality and I demonstrated possible solutions for overloading sections, too.