The climate of Sirjan is semi-desert and desert. Its average humidity is 36% and the average annual rainfall is 160 mm. This city has relatively hot summers with usually cool summer nights and cold winters, and in general, due to the high altitude of this city above sea level, Sirjan is better than the cities of its climate in Iran(semi-desert climate), has a milder and better climate. The geological position of Sirjan is unique in the country. In the east and northeast of this city there are high mountains and cold areas of Paris, Chahargonbad and Qahestan. One of the most important characteristics of Sirjan city is the suitable climate for the warehouse of all kinds of goods and also the establishment of all kinds of production lines. Low humidity, low dust, acceptable minimum and maximum temperature in winter and summer are the advantages of Sirjan city's climate.