Usually, physical model tests support the design of breakwaters considering differentincident wave conditions, including extreme events. This paper describes two-dimensional physicalmodel tests of a rock armour breakwater, performed at LNEC´s experimental facilities, under theframework of the HYDRALAB+ project. The goal of the present work is to evaluate damageevolution under wave conditions resulting from future climate change scenarios. Test results arepresented in terms of the non-dimensional damage parameter (S) and of the percentage of displacedarmour units (D). The data analysis is focused on the cumulative damage progression related withwave parameters as Hmax and H2%, for the imposed storm sequences. The use of the stability number(Ns), considering both H=Hs and H=H2% revealed a good agreement in order to characterize itsrelationship with damage evolution. On the other hand, the use of Hmax revealed a decrease of thelinearity on damage evolution
