What is the climate in saudi arabia, iraq, and iran?

Saudi Arabia has a desert climate characterized by extreme heat during the day, an abrupt drop in temperature at night, and very low annual rainfall. Iraq has a hot, dry climate The climate is influenced by Iraq's location between the subtropical aridity of the Arabian desert areas and the subtropical humidity of the Persian Gulf. Iran has a hot, dry climate characterized by long, hot, dry summers and short, cool winters. The climate is influenced by Iran's location between the subtropical aridity of the Arabian desert areas and the subtropical humidity of the eastern Mediterranean characterized by long, hot, dry summers and short, cool winters.