Due to the large size of Iran (it is approximately three times the size of France), there can be great variation in weather conditions across the country. The following information however, will provide a general guide as to what to expect in terms of weather if visiting Iran.
Although Iran is situated in the northern temperate zone, it has diverse climatic conditions due to various reasons. The direction of its mountains, its being adjacent to the hot and arid Saudi Arabian deserts, and its distance from the seas is the most important reasons behind Iran’s diverse climatic conditions.
One distinct climatic feature of Iran is the intense temperature gradients which at certain instances exceed 40 degrees centigrade (104 o F). The warmest areas of the country are the coastal regions of the Persian Gulf and the Sea of Oman as well as the pits in Loute and Sistan.
In the summertime, the temperature in these areas exceeds 45 degrees centigrade (113 o F). This is while the temperature in the northwestern and western parts of the country as well as the northern mountainous areas may reach over minus 30 degrees centigrade (-22 o F) in winters. It must also be noted that the annual precipitation level varies from zero to 2000 millimeters. The highest level of annual precipitation takes place in the Caspian Sea coastal areas as well as the northern and northwestern parts of the country. The lowest level of annual precipitation takes place in the southern and eastern parts of the country as well as the central desert region.
Winter Weather in Iran
Winter weather in the northwest of Iran is typically cold with heavy snowfall and subfreezing temperatures, whilst in the southern regions of Iran, the weather during this period is often fairly mild. However, cold air blowing from Siberia can produce some very cold weather during this period.
Spring Weather in Iran
Weather during the spring period in Iran is typically fairly mild and most of the rainfall seen in Iran occurs during the Spring and Winter periods.
However the weather within the Caspian coastal area of Iran (which is a high mountainous region) is very different to the rest of Iran and this area usually experiences rain fall throughout the whole year. Due to the different weather conditions in this country, the region is far more fertile to the rest of Iran which is typically fairly arid.
Summer Weather in Iran
Summer weather in Iran is typically very hot and dry. It is not uncommon for the temperature in the south of Iran to exceed 37 degrees centigrade during this period. The sun shines almost continuously during this season.
Autumn Weather in Iran
Like the spring, autumn is a fairly short season in Iran and it’s advisable to visit at this time.
As there is a wide range of weather differences across the country you will have to visit a weather site SUCH AS THIS and type in various cities on your journey, to ascertain current weather.