The STREAM project deals with territorial challenges connected to flooding in the Adriatic region. In this context, numerical modelling has become a fundamental tool for describing the dynamics of hazardous marine conditions which determine coastal flooding. This document reports the simulation results which were first validated against data acquired in several in-situ observing stations. Numerical models have been here used to reproduce past sea conditions (1994-2019) in order to develop climatological flood hazard maps showing areas which could be potentially flooded.