Twelve years of hourly average wind speed data are used to build an autoregressive model (AR(2)) to simulate hourly average wind speed (HAWS). The model matches well the characteristics of the experimental values of the wind speed. Tests have been performed to validate the model. Comparisons have been made between generated and real series of data to check if the wind behaviour is reproductible. The model is then used to build up a reference year for Tangiers and may be used to forecast wind speed, with good results.