The Red Sea Nubo–Sindian tropical desert and semi-desert ecoregion (WWF ID: PA1325) covers extremely arid land along the northeastern Red Sea, the southern Sinai Peninsula, and on a thin strip along the Israel-Jordan border.

Portions of the area support a thin savannah-like cover of widely scattered trees and scrub, surrounded by grasses that briefly flourish after a rainfall.

[5] The ecoregion stretches 2,000 kilometres (1,200 mi), from the Jordan River valley north of the Dead Sea, to just short of the Gulf of Aden in Yemen.

This climate features stable air and high pressure aloft, producing a hot, arid desert.

[3] Shrubs and herbaceous vegetation are found in the deep wadis and gullies that can retain moisture, and after a rainfall there are areas that briefly sprout grasses.