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The climate of Iran
Iran is one of the largest countries in the southern part of Asia. Despite the fact that it is such a large country and the relief in large parts of former Persia not as many climate types occur here as one would expect. Apart from the northwestern tip which has a warm continental climate the largest part of Iran has a mixture of four arid climate types (B-climates according to the Köppen climate classification). The lower regions along the coast have a warm desert climate which changes into a warm steppe climate (type Bsh) on the latitude of the Zagros mountain range. Central Iran has a cold steppe climate (type Bsk) and locally a cold desert climate (type Bwk). The Elbrus mountain range can be found in the northern part of Iran, here precipitation figures may be high. The northern strip along the Caspian Sea has a remarkably mild climate in comparison to the surrounding areas. During the winter subzero temperatures are uncommon here while subzero temperatures during the night may be recorded in the capital Teheran which is located further to the south. Even during the day subzero temperatures may occur here.


Climate information of places and areas in Iran
The climate information on this page is only brief. Specific information about weather and climate can be found on the climate pages per area or town. As for Iran the following climate information is available:


Summers in Iran are warm to hot. During the hottest months the sea normally has a cooling influence. However, in Iran the opposite seems to happen. During the summer it is especially very warm in the southwesterly and southeasterly coastal areas. Temperatures during the day are often above 35 degrees Celsius (95 degrees Fahrenheit). In some places temperatures of 35-40 degrees Celsius (104-113 degrees Fahrenheit) are not uncommon during the hottest months. During the summer the temperature of the Persian Gulf also increases. In June and July the temperature of the water is 30-32 degrees Celsius (86-89.6 degrees Fahrenheit) making this one of the warmest seas in the world. Summers are not only warm they are also very dry. Especially in the southeastern part of Iran it may not rain for several months in a row.

The climate of Iran has large extremes. Snow and locally very cold winters, regions with extreme drought and in the east very fierce winds with hurricane strength. Especially in the mountainous regions weather conditions may occur that make it hard for human and animal to move. Roads completely covered with snow during the winter, high temperatures during the summer and fierce winds which may cause very dangerous situations. Especially during dry periods when a lot of sand and dust is picked up by the wind.


Climate figures
Throughout Iran several climate figures and temperatures can be recorded. The figures below are for the capital Teheran and cannot be seen as an average for the country. For climate figures for other places and regions in Iran please, visit the individual climate pages.

temperature (°C)


temperature (°C)
hours of sunshine

average days with precipitation
per month
per month
temperature (°C)
January 7 -3 6 10 n/a
February 9 -1 6 8 n/a
March 15 5 7 10 n/a
April 21 12 9 6 n/a
May 27 16 9 4 n/a
June 34 20 11 1 n/a
July 37 24 12 1 n/a
August 36 23 12 1 n/a
September 31 19 11 1 n/a
October 23 12 9 4 n/a
November 15 5 5 5 n/a
December 8 -1 5 8 n/a
= 0-5 mm ● = 6-30 mm ● = 31-60 mm ● = 61-100 mm ● = 101-200 mm ● = over 200 mm
= 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches

More climate information
Climate tables are useful but they don’t give an overall picture of the climate and possible weather conditions during a period of time. How high the chances are of hot or cold weather or hurricanes can often not be found in these tables. This is why we offer extra climate information per month. The figures below are for the capital Teheran. For climate figures on specific regions and places please, visit the relevant individual climate pages.

chance of
(very) hot


chance of
(very) cool
chance of

chance of
chance of
sunny days


click here for the explanation of the symbols


The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.


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