Lightweight Cotton clothes are advised in summer, with a sweater for cooler evenings, especially in the inland areas. Waterproof medium wear is recommended for the winter, and warmer clothing for the mountainous areas of northern Iran.
limate of Iran can be divided in at least four different climate zones. The Climate of the Western and southwestern areas can be classified as BWh Climate; a hot, dry desert climate with annual average temperatures above 18°C. A small zone between the Persian Gulf the Turkish Border in the mid of Iran can be classified as BSh climate, a hot, dry Climate with the annual average Temperature above 18°C. The eastern and northern areas of Iran have a Csa Climate; a mild, semi-humid climate with dry summers, mild winters and the warmest month above 22°C. Finally, the mountainous regions of northern Iran can be classified as Dsa Climate, a cold snow Climate with dry summers and wet winters with the warmest month over 22°C and the coldest month below -3°C.