Tarkwa area, well noted for the extraction of gold and manganese in Ghana, is located between latitude 4°50ˈN and 5°24ˈN and longitude 1°50ˈW and 2°10ˈW. It has a total land area of about 905 km2. Tarkwa (Fig. 1) is the capital of the TarkwaNsuaem municipality (Agyapong and Otoo, 2014). Climate