The impact of climate variability on agriculture in Côte d'Ivoire requires updating climate information and assessing its effects on agricultural seasons. To this end, rainfall and temperature data covering the period 1971-2020 were analyzed, calibrated, and statistically validated using absolute and relative deviations, Pearson's correlation (R2), and RMSE. Potential evapotranspiration requirements were estimated using the Thornthwaite method, and Nicholson indices were calculated. Climate projections for 2050 and 2100 according to the RCP 4.5 and 8.5 scenarios were established, while geostatistical methods based on the semivariogram were used to spatialize the data and obtain reliable spatial references. The results reveal interannual variability in precipitation with a general downward trend and an average increase in temperatures until 2010, followed by stabilization around 26°C. According to scenarios RCP 4.5 and 8.5, monthly temperatures in Bouaké could increase by 0.88 to 6.79°C by 2050 2100, while annual precipitation is expected to decrease slightly (by 0.9 to 1.71 mm/year) while exhibiting increased variability. Although the impact on the length of growing seasons is relatively small, rising temperatures and unstable rainfall patterns underscore the need to promote agricultural practices that are resilient to climate change.
climate change, growing season, RCP scenario, Bandama valley district, Côte d’Ivoire