Oman
A vast gravel desert plain covers most of central Oman, with mountain ranges along the north (al Jebel al Akhdar) and southeast coast, where the country's main cities are also located: the capital city Muscat, Matrah and Sur in the north, and Salalah in the south. Oman's climate is hot and dry in the interior and humid along the coast. During past epochs Oman was covered by ocean. Fossilized shells exist in great numbers in areas of the desert away from the modern coastline.
While the mountain areas receive more plentiful rainfall, some parts of the coast, particularly near the island of Masirah, sometimes receive no rain at all within the course of a year. The climate generally is very hot, with temperatures reaching 54°C (129°F) in the hot season, from May to September.
(Wikipedia)
