West Equatorial Africa is one of the less studied regions in Africa. The talk will start with a brief introduction on the basic features of atmospheric dynamics throughout the tropospheric column over the region. Then, the drivers of lower level westerlies off the Atlantic Ocean to West Equatorial Africa are discussed, followed by a presentation on the contribution of these drivers to the modulation of the annual variability of the strength of the westerlies. A new hypothesis on the drivers of the low level westerlies is presented. The role of dynamical features in the annual and interannual variability of the water cycle is provided. The skill of climate models in representing these features is discussed.