The distributions of fCO₂ in surface seawater and in the atmosphere were studied in the Benguela Province (14–33°S) during the austral winter and spring 2005 and 2006. High fCO_2sw variability was observed due to the effect of upwelled and derived meso-scale structures such as filament water. The complexity of the system, dominated by the upwelling dynamics, produces both a general decrease in fCO_2sw with temperature (16 μatm/°C) and negative temperature–fCO_2sw relationship due to the presence of upwelling, filaments, and frontal zones. Multiple linear regressions are unable to capture the resulting variability in fCO₂ in the area. CO₂ fluxes over the cruise track varied from Northern Namibia to the Southern Benguela regions. The northern system (14–20°S) is oversaturated in CO₂ relative to the atmosphere, and presents an average flux of 0.56 mol m⁻² yr⁻¹. The southern part (20°S–33°S) of the Benguela system is undersaturated in CO_2, and the average flux is −1.62 mol m⁻² yr⁻¹. This study describes an intensive upwelling area, acting as a sink for CO₂ in winter and spring. Keywords: CO2 fluxes, Upwelling, Benguela, South Atlantic, Carbon dioxide.