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🇮🇷 Iran

Flag of IranNational Flag

Geography & Borders

AfghanistanAfghanistanArmeniaArmeniaAzerbaijanAzerbaijanIraqIraqPakistanPakistanTürkiyeTürkiyeTurkmenistanTurkmenistan

Introduction & Background

Iran,a officially the Islamic Republic of Iran,b and also called Persia,c1314 is a country located in Western Asia. It is bordered by Iraq to the west, by Turkey, Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmenistan to the north, by Afghanistan and Pakistan to the east, and by the Gulf of Oman and the Persian Gulf to the south. It covers an area of 1.64million square kilometres (0.63million square miles), making it the 17th-largest country. Iran has an estimated population of 86.8 million,8 making it the 17th-most populous country in the world, and the second-largest in the Middle East. Its largest cities, in descending order, are the capital Tehran, Mashhad, Isfahan, Karaj, Shiraz, and Tabriz.

The country is home to one of the world's oldest civilizations,1516 beginning with the formation of the Elamite kingdoms in the fourth millennium BC. It was first unified by the Medes, an ancient Iranian people, in the seventh century BC,17 and reached its territorial height in the sixth century BC, when Cyrus the Great founded the Achaemenid Persian Empire, which became one of the largest empires in history and a superpower.1819 The Achaemenid Empire fell to Alexander the Great in the fourth century BC and was subsequently divided into several Hellenistic states. An Iranian rebellion established the Parthian Empire in the third century BC, which was succeeded in the third century AD by the Sassanid Empire, a major world power for the next four centuries.2021 Arab Muslims conquered the empire in the seventh century AD, which led to the Islamization of Iran. It subsequently became a major center of Islamic culture and learning, with its art, literature, philosophy, and architecture spreading across the Muslim world and beyond during the Islamic Golden Age. Over the next two centuries, a series of native Iranian Muslim dynasties emerged before the Seljuk Turks and the Mongols conquered the region. In the 15th century, the native Safavids re-established a unified Iranian state and national identity,5 and converted the country to Shia Islam.622 Under the reign of Nader Shah in the 18th century, Iran presided over the most powerful military in the world,23 though by the 19th century, a series of conflicts with the Russian Empire led to significant territorial losses.2425 The early 20th century saw the Persian Constitutional Revolution. Efforts to nationalize its fossil fuel supply from Western companies led to an Anglo-American coup in 1953, which resulted in greater autocratic rule under Mohammad Reza Pahlavi and growing Western political influence.26 He went on to launch a far-reaching series of reforms in 1963.27 After the Iranian Revolution, the current Islamic Republic was established in 1979 by Ruhollah Khomeini, who became the country's first Supreme Leader.28

Key Information
AttributeDetails
Official Name
Islamic Republic of Iran
Capital
Tehran
Continent
Asia
Region / Subregion
Asia / Southern Asia
Population
85,961,000
Area
1,648,195 km²
Languages
Persian (Farsi)
Currencies
Iranian rial (﷼) [IRR]
Cost of Living
34.2 / 100 (Low)
Price per Coffee
$1.71
Price per Meal
$7.38
Timezones
UTC+03:30 (IRDT)
Bounding Box
Min: (25.08° N, 44.11° E)
Max: (39.71° N, 63.32° E)
Climate
Temperate
Terrain
Indo-Gangetic plains in the north, Deccan plateau in the south, and Himalayas in the far north

Geography & Climate

Climate, weather, and air quality data are based on historical records for the coordinates of the capital city, Tehran.

Temperature (2025)

-10°0°10°20°30°40°
Jan
0.2° / 10.1°
Feb
-0.5° / 9.6°
Mar
7.1° / 18.6°
Apr
13.7° / 27.2°
May
19.4° / 33.5°
Jun
20.4° / 35.4°
Jul
24.4° / 39°
Aug
25.1° / 37.8°
Sep
18.9° / 32.5°
Oct
14.6° / 27.9°
Nov
7° / 19.5°
Dec
2.6° / 11.5°

Precipitation & Snow (2025)

22Jan
50Feb
29Mar
29Apr
1May
0Jun
1Jul
0Aug
0Sep
0Oct
1Nov
10Dec
Rain (mm) Snow (cm)

Atmospheric Pressure (2025)

910.9+4.5Jan
906-0.4Feb
907.9+1.5Mar
906.1-0.3Apr
904.7-1.7May
902.5-3.9Jun
901.2-5.2Jul
904.7-1.7Aug
904.7-1.7Sep
907.7+1.3Oct
912.5+6.1Nov
907.4+1Dec

Thunderstorm Days (2025)

0Jan
0Feb
0Mar
0Apr
0May
0Jun
0Jul
0Aug
0Sep
0Oct
0Nov
0Dec

Wind Speed (2025)

Jan
14.3
Feb
19.9
Mar
16.5
Apr
23.9
May
25
Jun
26.1
Jul
23
Aug
16.6
Sep
21.8
Oct
16.4
Nov
12
Dec
15.2

Air Quality — Monthly Averages (2025)

MetricJanFebMarAprMayJunJulAugSepOctNovDec
PM2.5 μg/m³60.346.148.135.127.825.527.827.337.147.167.158.9
PM10 μg/m³64.253.559.973.956.847.15247.26062.274.565.7
O₃ μg/m³924.233.35473.386.382.579.452.831.914.59.1
NO₂ μg/m³86.986.484.964.856.248.949.156.7768391.177.2
SO₂ μg/m³74.145.531.91712.511.411.312.716.126.260.571.9
CO μg/m³800542595399314261227248338600870652

Pollen Levels — Monthly (2025)

Pollen data is negligible or unavailable for this location.

⛰️ Highest Elevation

Damavand
▲
Damavand5610 m / 18,406 ft
📷 Unknown

  • Map Locations: Google Maps | OpenStreetMap

People & Society

Total Population90,608,707Density: 55.85 / km²
Annual Growth Rate+1.2%Moderate Growth
Life Expectancy77.65 yrsAverage lifespan at birth
Fertility Rate1.7Births per woman



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