 Temperatures are moderate, varying from mean maximums of for Nouadhibou and Nouakchott, respectively, to mean minimums of .Battering surf and shifting sand banks characterize the entire length of the shoreline.The Ras Nouadhibou (formerly known as Cap Blanc) peninsula, which forms Dakhlet Nouadhibou (formerly Lévrier Bay) to the east, is long and 13 km wide.