Good rains through the summer of 2009 have provided a complete collection of water, and the reservoirs that provide water to Port Sudan are full. The Khor Arba'at is dammed about 15 km east of the Red Sea and 25 km north of Port Sudan. It is the only permanent water source in the Red Sea Hills.
The seacoast of Sudan is bordered by a flat sandy hinterland that runs parallel to the coast and the inland hills. This region is typically 10 km across. Rainfed rivers in the hills are temporary, and do not flow all the way to the coast. A good supply of water for port towns on the Red Sea has always been problematic.
Population growth in Port Sudan and on its outskirts have increased demand for basic services such as water and electricity. Authorities have explored the idea of building a water pipeline from the Nile across the Nubian desert to provide a stable supply of water.
Seasonal migration during the summer months reduced the population of the city, and reduced the demands on electricity, so it was stable then. During the rest of the year, electricity supply may not always be secure.