Sign In Register

Semnan, Iran

Full City Profile

124,826 Population 4,764/sq mi density
3,766 ft Elevation 1,148 meters
64°F Avg Temperature 18°C
Semnan enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 39°F in January while summers reach 88°F in July. The area gets 320 sunny days per year. Annual precipitation totals 8.9 inches. The area receives 0.0 inches of snow annually.

Temperature

39°F Jan (4°C) 88°F Jul (31°C)
Annual Average64.1°F
19% above US avg
January Average39°F (4°C)
July Average88°F (31°C)
Sunny Days320 days/yr

Geography

Elevation3,766 ft (1,148 m)
Area26.2 sq mi (67.9 km²)
Population Density4,764/sq mi
Coordinates35.5769°N, 53.3921°W
TimezoneAsia/Tehran

Precipitation & Snow

Annual Rainfall 8.9"
77% below US avg
Snowfall 0.0"
Wettest Month (Mar) 1.30"
Driest Month (Jul) 0.16"

Air Quality

Earthquake History

91 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.0. Most recent: M4.9 on Jun 20, 2025.

Jan 20, 1990 36 km E of Soleh Bon, Iran M6.0 49 km
Aug 27, 2010 76 km S of D?mgh?n, Iran M5.8 98 km
Sep 22, 1992 24 km S of B?bol, Iran M5.1 105 km
Jan 11, 2012 26 km SSE of B?bol, Iran M5.1 100 km
Jun 9, 1993 90 km S of Semnan, Iran M5.0 91 km
Aug 28, 2010 75 km S of D?mgh?n, Iran M4.9 95 km
Jun 20, 2025 38 km WSW of Semnan, Iran M4.9 39 km
Dec 9, 1999 19 km S of Behshahr, Iran M4.8 105 km
Mar 21, 2013 56 km NE of Mahdishahr, Iran M4.8 68 km
Jan 9, 1998 15 km W of ?mol, Iran M4.8 148 km
Feb 16, 1990 28 km SSE of D?mgh?n, Iran M4.8 99 km
Nov 3, 1997 20 km NNE of D?mgh?n, Iran M4.8 127 km
Aug 23, 1991 23 km NNW of Mahdishahr, Iran M4.7 39 km
Jul 4, 2019 26 km S of D?mgh?n, Iran M4.7 98 km
Feb 10, 2012 23 km SSW of Soleh Bon, Iran M4.7 88 km
Oct 10, 2002 24 km WNW of Soleh Bon, Iran M4.7 102 km
Jan 20, 2010 28 km ENE of Soleh Bon, Iran M4.7 55 km
Jan 22, 1991 25 km SSW of Soleh Bon, Iran M4.6 90 km
Aug 19, 1993 25 km SW of ?stg?h-e R?h ?han-e Garms?r, Iran M4.6 130 km
May 7, 2020 3 km NNW of Dam?vand, Iran M4.6 123 km
Source: USGS (M2.5+, 1990–2025)

Nearby Volcanoes

1 volcano within 200 km. Closest: Damavand (123 km).

Name Type Elevation Last Eruption Distance
Damavand Stratovolcano 5,670 m (18,602 ft) -5350 123 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 39°F (4°C) 1.3 in Coldest
February 43°F (6°C) 1.1 in
March 51°F (11°C) 1.3 in Wettest
April 64°F (18°C) 0.8 in
May 74°F (23°C) 0.7 in
June 84°F (29°C) 0.3 in
July 88°F (31°C) 0.2 in Warmest, Driest
August 86°F (30°C) 0.2 in
September 79°F (26°C) 0.3 in
October 66°F (19°C) 0.8 in
November 53°F (12°C) 0.9 in
December 42°F (6°C) 1.1 in

Semnan has a seasonal temperature swing of 50°F / from 39°F in January to 88°F in July. Total annual precipitation is 8.9 inches, with March being the wettest month (1.3") and July the driest (0.2").

View full weather details →