Ahvaz is the capital of Khuzestan Province. Ahvaz is built on the banks of the Karun River and is situated in the middle of Khuzestan Province. Ahvaz has a desert climate with long, very hot summers and mild, short winters. Ahvaz is consistently one of the hottest cities on the planet during the summer with many sandstorms and duststorms common during the summer period. Winters in Ahvaz have no snow.