I cite the following post that I've pasted below... 1.5 Liters is what he says: Obada Barry, DMD.
Seasons have a much greater impact in the interior. In the Sahara Desert, summer temperatures often exceed 104ÂºF/ 40ÂºC in summer, but may fall to near freezing during winter nights. In terms of rainfall, the northern part of Morocco is considerably wetter than the arid south (especially along the coast).
The Sahara Desert-or 'the Great Desert' - is the world's hottest desert, and the third largest desert after Antarctica and the Arctic. At over 9,400,000 square kilometres (3,600,000 sq mi), it covers most of North Africa, making it almost as large as China or the United States.he desert landforms of the Sahara are shaped by wind or by occasional rains and include sand dunes and dune fields or sand seas (erg), stone plateaus (hamada), gravel plains (reg), dry valleys, and salt flats (shatt or chott).