The objective of the physical-biogeochemical measurement program implemented during RV METEOR cruise M189 during early summer 2023 was to measure the variability of the circulation and the coastal upwelling off Angola and Namibia. The expedition concentrated on examining processes pertinent to coastal upwelling, greenhouse gas generation, emission dynamics, and biological productivity. The investigated physical processes encompassed wind-induced oceanic forcing, the influence of tide-generated internal waves and their consequential turbulent mixing, the impact of freshwater inputs, and the dynamic processes associated with the Angola-Benguela Front.