The Kingdom of Saudi Arabia is the largest country in the Arabian Peninsula, and Located in the southwest corner of Asia, the Kingdom is at the crossroads of Europe, Asia and Africa. It is surrounded by the Red Sea on the West, by Yemen and Oman on the South, the Arabian Gulf and the United Arab Emirates and Qatar on the East, and Jordan, Iraq and Kuwait on the North. Saudi Arabia's Red Sea coastline stretches about 1,760 kilometers (1,100 miles) while its Arabian Gulf coastline roughly 560 kilometers (350 miles).
Almost the entire Kingdom is arid, although there is rainfall in the north and along the mountain range to the west, especially in the far southwest, which receives the monsoon rains in summer. Sporadic rain can also occur elsewhere, sometimes very heavily, causing serious flooding, including in Riyadh, where the air and prevailing winds usually tend to be very dry.