Groundwater recharge in Southern Africa was studied to understand how much rainwater replenishes the groundwater. Different methods were used to estimate recharge, with results showing that recharge is less than 4% of rainfall in some areas, but can reach 20% with heavy rainfall. High temperatures in the region limit recharge to less than 3% of rainfall using traditional methods. Sporadic intense rainfall events contribute significantly to groundwater recharge due to the presence of permeable rocks. Methods like chloride mass balance, saturated volume fluctuation, and water table fluctuation were found to be reliable for estimating recharge in the region.