Iran’s climate is one of the most unique climates in the world. Iran is a high plateau, located in a latitude of 25 to 40 degrees in the Northern Hemisphere and in the warm area. Desert and semi-desert areas occupy more than half of the country’s land area. About a third of Iran is also mountainous and a small part of Iran (including the southern plain of the Caspian Sea and the Khuzestan plain) is composed of fertile plains.
Iran has a high climatic diversity. From the north to the south, we gradually face different climate zones. Iran has dry and semi-arid weather . Annual precipitation is varying in different parts of the country and also in different seasons.
Introducing the Iran’s climate
Moderate and humid climate
The southern coasts of the Caspian Sea are part of the temperate regions of the country due to the moderate weather and high rainfall. Usually, the temperature in the summer is between 25 to 30 degrees per day and between 20 and 23 degrees at night. Humidity in this area is very high. Rainfall has increased the Flora and causes the growth of forests in the temperate and humid regions of the southern part of Caspian Sea. The rainfall and humidity in the temperate and humid areas, along the sea coasts, increase from east to west.
Warm and dry climate
A significant portion of Iran’s area is occupied by warm and dry areas. The desert sky is serene and no clouds in most of the year. The desert sky is serene and no clouds in most of the year. The difference in temperature between night and day is high in hot and dry climates. The climatic characteristics of this climate are hot days and very cold nights, cold and hard winters, and warm and dry summers.
Cold and mountainous climate
The characteristic feature of the cold and mountainous climate is the severe cold of winter and mild weather in the summer of this area. Snowfall is very high in the cold and mountainous climate. The difference between night and day is very high. The dryness of the air is disturbing in the cold and mountainous regions. In these areas, rainfall is low in the summer and much in the winter. Mountains are the source of rivers and aqueducts in the country.
Warm and humid climate
This climatic region is along a narrow, relatively long coastal strip that is more than two thousand kilometers in length. The characteristic feature of this area, is intense heat and high humidity of the air. The rainfall in this area is very low. Most rain occurs in autumn and especially in winter. In this area the weather is mild and pleasant in winter. temperature difference between the day and night is low. Underground water in this area is often salty. Due to direct sunlight and extreme heat, the evaporation rate is very high.