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Weather & Climate in Sīāhkal, Iran
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sīāhkal enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 42°F in January while summers reach 74°F in July. The area gets 270 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 36.1 inches. The city sits at an elevation of 154 feet.
Temperature
42°F Jan (5°C)
74°F Jul (24°C)
| Annual Average | 57.7°F |
| 7% above US avg | |
| January Average | 42°F (5°C) |
| July Average | 74°F (24°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 154 ft (47 m) |
| Area | 37.4 sq mi (96.8 km²) |
| Population Density | 533/sq mi |
| Coordinates | 37.1533°N, 49.8714°W |
| Timezone | Asia/Tehran |
Precipitation & Snow
Air Quality
Earthquake History
143 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.4.
| Jun 20, 1990 | 23 km N of P?deg?n-e Manj?l, Iran | M7.4 | 47 km | 19 km |
| Jun 21, 1990 | 36 km ESE of P?deg?n-e Manj?l, Iran | M5.8 | 58 km | 15 km |
| Nov 28, 1991 | 26 km NE of P?deg?n-e Manj?l, Iran | M5.6 | 35 km | 16 km |
| Jun 24, 1990 | 13 km N of P?deg?n-e Manj?l, Iran | M5.4 | 53 km | 10 km |
| Jun 21, 1990 | 33 km E of P?deg?n-e Manj?l, Iran | M5.4 | 41 km | 10 km |
| Jul 6, 1990 | 16 km NW of P?deg?n-e Manj?l, Iran | M5.3 | 60 km | 35 km |
| Jun 21, 1990 | 1 km SW of P?deg?n-e Manj?l, Iran | M5.3 | 62 km | 10 km |
| Oct 15, 1995 | Near the coast of northern Iran | M5.2 | 37 km | 33 km |
| Apr 19, 2002 | 37 km NNW of Qazvin, Iran | M5.2 | 65 km | 33 km |
| Jun 20, 1990 | 38 km ESE of P?deg?n-e Manj?l, Iran | M5.1 | 57 km | 16 km |
| Dec 28, 1990 | 15 km SSW of F?man, Iran | M5.0 | 57 km | 10 km |
| Jun 21, 1990 | 28 km NNE of P?deg?n-e Manj?l, Iran | M4.9 | 36 km | 10 km |
| Jun 21, 1990 | 33 km SE of P?deg?n-e Manj?l, Iran | M4.9 | 73 km | 10 km |
| May 27, 2008 | 14 km ESE of Zanj?n, Iran | M4.9 | 121 km | 23 km |
| Jun 20, 1990 | 22 km NE of P?deg?n-e Manj?l, Iran | M4.9 | 38 km | 15 km |
| Jun 20, 1990 | 10 km NNE of P?deg?n-e Manj?l, Iran | M4.9 | 51 km | 19 km |
| Jun 22, 1990 | 10 km NNW of P?deg?n-e Manj?l, Iran | M4.9 | 58 km | 10 km |
| Jun 28, 1990 | 21 km SSE of Rasht, Iran | M4.8 | 22 km | 10 km |
| Apr 26, 1995 | 25 km SSW of Rasht, Iran | M4.8 | 32 km | 33 km |
| Mar 23, 2008 | 34 km S of Khalkh?l, Iran | M4.8 | 122 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 2.0 m (7 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1990 | CASPIAN SEA | Eruption + Earthquake | 2.0 m | 40,000 | 47 km |
| 1608 | CASPIAN SEA | Earthquake | — | 3,000 | 101 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (5°C) | 3.3 in | Coldest |
| February | 42°F (5°C) | 2.9 in | |
| March | 45°F (7°C) | 3.2 in | |
| April | 55°F (13°C) | 2.1 in | |
| May | 62°F (17°C) | 1.7 in | |
| June | 70°F (21°C) | 1.1 in | Driest |
| July | 74°F (24°C) | 1.1 in | |
| August | 75°F (24°C) | 1.7 in | Warmest |
| September | 69°F (20°C) | 3.7 in | |
| October | 61°F (16°C) | 5.9 in | Wettest |
| November | 53°F (12°C) | 5.0 in | |
| December | 45°F (7°C) | 4.4 in |
Sīāhkal has a seasonal temperature swing of 33°F / from 42°F in January to 75°F in August. Total annual precipitation is 36.1 inches, with October being the wettest month (5.9") and June the driest (1.1").