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Weather & Climate in Sīn, Iran
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sīn enjoys a temperate climate with an average annual temperature of 59°F (15°C). Winters average 36°F in January while summers reach 82°F in July. The area gets 325 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 5.8 inches (drier than the 38-inch national average). The city sits at an elevation of 5,187 feet.
Temperature
36°F Jan (2°C)
82°F Jul (28°C)
| Annual Average | 59.1°F |
| 9% above US avg | |
| January Average | 36°F (2°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 325 days/yr |
Geography
| Elevation | 5,187 ft (1,581 m) |
| Area | 1.5 sq mi (3.9 km²) |
| Population Density | 3,688/sq mi |
| Coordinates | 32.8534°N, 51.6564°W |
| Timezone | Asia/Tehran |
Precipitation & Snow
Air Quality
Earthquake History
51 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.
| Jan 12, 2013 | Western Iran | M5.4 | 132 km | 4 km |
| Jun 15, 1998 | 51 km WSW of Bor?jen, Iran | M5.2 | 149 km | 31 km |
| Jul 24, 2012 | 42 km SW of Bor?jen, Iran | M5.2 | 144 km | 10 km |
| Jan 25, 2013 | 41 km WSW of Bor?jen, Iran | M5.0 | 139 km | 38 km |
| Jul 1, 2012 | 28 km WSW of Bor?jen, Iran | M5.0 | 128 km | 7 km |
| Mar 31, 2016 | 44 km SSE of F?rs?n, Iran | M4.9 | 144 km | 10 km |
| Mar 21, 2025 | 43 km W of Ardestān, Iran | M4.8 | 66 km | 10 km |
| Sep 13, 1999 | 38 km S of F?rs?n, Iran | M4.8 | 145 km | 33 km |
| Aug 2, 2011 | 46 km SSE of F?rs?n, Iran | M4.8 | 145 km | 21 km |
| Jul 14, 2016 | 39 km SW of Bor?jen, Iran | M4.7 | 139 km | 10 km |
| Feb 25, 2015 | 45 km SW of Bor?jen, Iran | M4.7 | 148 km | 10 km |
| Jul 24, 2012 | 41 km SW of Bor?jen, Iran | M4.7 | 141 km | 10 km |
| Apr 6, 2025 | 32 km WSW of Borūjen, Iran | M4.6 | 127 km | 10 km |
| Jan 18, 2004 | 47 km E of Bor?jen, Iran | M4.6 | 108 km | 63 km |
| Jul 8, 2002 | 45 km S of F?rs?n, Iran | M4.6 | 147 km | 33 km |
| Apr 26, 2016 | 47 km SW of Bor?jen, Iran | M4.6 | 148 km | 10 km |
| Feb 22, 2007 | 45 km WSW of Bor?jen, Iran | M4.6 | 143 km | 14 km |
| Feb 13, 2014 | 20 km SSW of Bor?jen, Iran | M4.5 | 125 km | 8 km |
| Mar 2, 2013 | 22 km W of Bor?jen, Iran | M4.5 | 111 km | 10 km |
| Apr 24, 2013 | 21 km E of Golp?yeg?n, Iran | M4.5 | 127 km | 21 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 36°F (2°C) | 1.0 in | Coldest |
| February | 40°F (5°C) | 0.8 in | |
| March | 48°F (9°C) | 1.1 in | Wettest |
| April | 58°F (15°C) | 0.7 in | |
| May | 66°F (19°C) | 0.4 in | |
| June | 76°F (24°C) | 0.0 in | |
| July | 82°F (28°C) | 0.0 in | Warmest |
| August | 80°F (26°C) | 0.0 in | |
| September | 73°F (23°C) | 0.0 in | Driest |
| October | 62°F (16°C) | 0.2 in | |
| November | 50°F (10°C) | 0.6 in | |
| December | 40°F (5°C) | 0.9 in |
Sīn has a seasonal temperature swing of 45°F / from 36°F in January to 82°F in July. Total annual precipitation is 5.8 inches, with March being the wettest month (1.1") and September the driest (0.0").