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Weather & Climate in Tehran, Iran
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tehran enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 37°F in January while summers reach 91°F in July. The area gets 341 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 9.2 inches (drier than the 38-inch national average). The area receives 8.6 inches of snow annually. The city sits at an elevation of 3,865 feet.
Temperature
37°F Jan (3°C)
91°F Jul (33°C)
| Annual Average | 66.2°F |
| 23% above US avg | |
| January Average | 37°F (3°C) |
| July Average | 91°F (33°C) |
| Sunny Days | 341 days/yr |
Geography
| Elevation | 3,865 ft (1,178 m) |
| Area | 264.9 sq mi (686.0 km²) |
| Population Density | 27,007/sq mi |
| Coordinates | 35.6944°N, 51.4215°W |
| Timezone | Asia/Tehran |
Precipitation & Snow
Air Quality
Earthquake History
71 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.3.
| May 28, 2004 | 41 km SSE of Nowshahr, Iran | M6.3 | 68 km | 17 km |
| Jan 20, 1990 | 36 km E of Soleh Bon, Iran | M6.0 | 139 km | 25 km |
| Jun 18, 2007 | 22 km S of Qom, Iran | M5.5 | 150 km | 5 km |
| Sep 22, 1992 | 24 km S of B?bol, Iran | M5.1 | 135 km | 36 km |
| Jan 11, 2012 | 26 km SSE of B?bol, Iran | M5.1 | 141 km | 16 km |
| Jun 20, 2025 | 38 km WSW of Semnan, Iran | M4.9 | 149 km | 10 km |
| Jan 9, 1998 | 15 km W of ?mol, Iran | M4.8 | 110 km | 33 km |
| Apr 8, 2002 | 29 km W of ?mol, Iran | M4.8 | 98 km | 46 km |
| Jul 13, 1990 | 24 km NNE of Qazvin, Iran | M4.7 | 150 km | 33 km |
| Jan 20, 2010 | 28 km ENE of Soleh Bon, Iran | M4.7 | 131 km | 5 km |
| Feb 10, 2012 | 23 km SSW of Soleh Bon, Iran | M4.7 | 91 km | 14 km |
| May 29, 2004 | 28 km S of Ch?l?s, Iran | M4.7 | 79 km | 10 km |
| Oct 10, 2002 | 24 km WNW of Soleh Bon, Iran | M4.7 | 85 km | 33 km |
| Mar 25, 2005 | 28 km W of S?veh, Iran | M4.7 | 146 km | 14 km |
| Jan 22, 1991 | 25 km SSW of Soleh Bon, Iran | M4.6 | 90 km | 13 km |
| Aug 19, 1993 | 25 km SW of ?stg?h-e R?h ?han-e Garms?r, Iran | M4.6 | 91 km | 18 km |
| May 7, 2020 | 3 km NNW of Dam?vand, Iran | M4.6 | 57 km | 10 km |
| Aug 25, 2015 | 19 km S of Soleh Bon, Iran | M4.6 | 106 km | 7 km |
| May 28, 2004 | 23 km S of Ch?l?s, Iran | M4.5 | 84 km | 10 km |
| Dec 3, 1998 | 25 km NNW of Karaj, Iran | M4.5 | 62 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1608 | CASPIAN SEA | Earthquake | - | 3,000 | 114 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Damavand (68 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Damavand | Stratovolcano | 5,670 m (18,602 ft) | -5350 | 68 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 37°F (3°C) | 1.3 in | Coldest |
| February | 39°F (4°C) | 1.3 in | |
| March | 47°F (9°C) | 1.7 in | Wettest |
| April | 59°F (15°C) | 1.1 in | |
| May | 68°F (20°C) | 0.8 in | |
| June | 78°F (26°C) | 0.2 in | |
| July | 91°F (33°C) | 0.1 in | Warmest |
| August | 81°F (27°C) | 0.1 in | Driest |
| September | 73°F (23°C) | 0.1 in | |
| October | 61°F (16°C) | 0.6 in | |
| November | 49°F (10°C) | 0.9 in | |
| December | 40°F (4°C) | 1.2 in |
Tehran has a seasonal temperature swing of 55°F / from 37°F in January to 91°F in July. Total annual precipitation is 9.5 inches, with March being the wettest month (1.7") and August the driest (0.1").