The climate change induces heavy storms that impact coastal environments. In order to predict such events or to adapt coastal structures in the future, it is desirable to be able to monitor the action of waves. Thanks to new technologies, one can embed sensors on dykes and have access remotely and continuously to field data measurements. In this paper, an in situ system, installed in September 2014, to measure the wave impact pressure is described. Additionally, the preliminary results of data processing are given.