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Weather & Climate in Zīr Āb, Iran
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Zīr Āb enjoys a temperate climate with an average annual temperature of 62°F (16°C). Winters average 42°F in January while summers reach 81°F in July. The area gets 299 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 20.3 inches (drier than the 38-inch national average). The city sits at an elevation of 1,306 feet.
Temperature
42°F Jan (6°C)
81°F Jul (27°C)
| Annual Average | 61.5°F |
| 14% above US avg | |
| January Average | 42°F (6°C) |
| July Average | 81°F (27°C) |
| Sunny Days | 299 days/yr |
Geography
| Elevation | 1,306 ft (398 m) |
| Area | 56.9 sq mi (147.4 km²) |
| Population Density | 285/sq mi |
| Coordinates | 36.1797°N, 52.9735°W |
| Timezone | Asia/Tehran |
Precipitation & Snow
Air Quality
Earthquake History
103 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 | 123 km | 17 km |
| Jan 20, 1990 | 36 km E of Soleh Bon, Iran | M6.0 | 39 km | 25 km |
| Jan 11, 2012 | 26 km SSE of B?bol, Iran | M5.1 | 24 km | 16 km |
| Sep 22, 1992 | 24 km S of B?bol, Iran | M5.1 | 30 km | 36 km |
| Aug 16, 2000 | 15 km SSW of Gorg?n, Iran | M4.9 | 138 km | 33 km |
| Jun 20, 2025 | 38 km WSW of Semnan, Iran | M4.9 | 87 km | 10 km |
| Sep 16, 1997 | 31 km WNW of Gorg?n, Iran | M4.8 | 130 km | 33 km |
| Apr 8, 2002 | 29 km W of ?mol, Iran | M4.8 | 89 km | 46 km |
| Feb 16, 1990 | 28 km SSE of D?mgh?n, Iran | M4.8 | 132 km | 23 km |
| Dec 9, 1999 | 19 km S of Behshahr, Iran | M4.8 | 63 km | 10 km |
| Nov 3, 1997 | 20 km NNE of D?mgh?n, Iran | M4.8 | 134 km | 33 km |
| Jan 9, 1998 | 15 km W of ?mol, Iran | M4.8 | 79 km | 33 km |
| Mar 21, 2013 | 56 km NE of Mahdishahr, Iran | M4.8 | 67 km | 10 km |
| Oct 10, 2002 | 24 km WNW of Soleh Bon, Iran | M4.7 | 66 km | 33 km |
| May 29, 2004 | 28 km S of Ch?l?s, Iran | M4.7 | 146 km | 10 km |
| Jul 4, 2019 | 26 km S of D?mgh?n, Iran | M4.7 | 130 km | 10 km |
| Aug 23, 1991 | 23 km NNW of Mahdishahr, Iran | M4.7 | 39 km | 33 km |
| Feb 10, 2012 | 23 km SSW of Soleh Bon, Iran | M4.7 | 82 km | 14 km |
| Jan 20, 2010 | 28 km ENE of Soleh Bon, Iran | M4.7 | 41 km | 5 km |
| Aug 25, 2015 | 19 km S of Soleh Bon, Iran | M4.6 | 74 km | 7 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Nearby Volcanoes
1 volcano within 200 km. Closest: Damavand (82 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Damavand | Stratovolcano | 5,670 m (18,602 ft) | -5350 | 82 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 42°F (6°C) | 2.3 in | Coldest |
| February | 44°F (7°C) | 1.9 in | |
| March | 50°F (10°C) | 1.9 in | |
| April | 61°F (16°C) | 1.1 in | |
| May | 68°F (20°C) | 1.0 in | |
| June | 76°F (25°C) | 0.7 in | |
| July | 81°F (27°C) | 0.6 in | Warmest, Driest |
| August | 80°F (27°C) | 1.0 in | |
| September | 74°F (23°C) | 1.7 in | |
| October | 64°F (18°C) | 3.0 in | Wettest |
| November | 54°F (12°C) | 2.6 in | |
| December | 46°F (8°C) | 2.5 in |
Zīr Āb has a seasonal temperature swing of 38°F / from 42°F in January to 81°F in July. Total annual precipitation is 20.3 inches, with October being the wettest month (3.0") and July the driest (0.6").