The rayon borders upon Armenia in the North-East, and Iran in the South. Julfa Rayon is in the east from Nakhchivan city. Damirlidagh Mountain (3368 m) is the highest point of the rayon. Summer of the rayon is hot and dry, but winter is cold. Average temperature in January is between -10 and -3°C, in July between +19 and +28°C. Amount of annual precipitation is 200-600 mm. The Alinja, Garadara Rivers and the Aras River (along the border with Iran) flow through the rayon’s territory. There are forest massifs in the mountains where trees such as oak, beech and hornbeam grow. Fauna is represented by such animals as wolf, fox and rabbit.