Like the West African countries, the Sassandra river basin limited at Soubré is facing the challenges of climate change. Seen anthropogenic activities have contributed to modifying the climate in a sustainable way, it is important to have as clear an idea as possible of possible climate changes. The main objective of this study is to characterize the variability of climate parameters in order to sustainably manage its impacts on basin development projects. So, the methodology adopted is divided into 2 steps: the characterization of climate variability and the characterization of climate change to 2030 and 2050 horizon. The results of climate variability showed a decrease in rainfall and an increase in temperatures. In terms of climate change, under scenario RCP4.5, minimum and maximum temperatures are projected to increase by 1.4°C to 1.8°C by 2030 and 2050. At the same horizons and under scenario RCP8.5, there is an average increase of 1.4°C to 2.4°C. In terms of annual rainfall, projections show an upward trend of 1% by 2030 and a downward trend of 1% by 2050 under the RCP4.5 scenario. The scenario RCP8.5 predicts an increase in precipitation with rates greater than 35% at both future horizons.