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Weather & Climate in Umm as Summāq, Jordan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Umm as Summāq enjoys a temperate climate with an average annual temperature of 62°F (17°C). Winters average 45°F in January while summers reach 76°F in July. The area gets 313 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 12.8 inches (drier than the 38-inch national average). The city sits at an elevation of 3,064 feet.
Temperature
45°F Jan (7°C)
76°F Jul (24°C)
| Annual Average | 61.9°F |
| 15% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 313 days/yr |
Geography
| Elevation | 3,064 ft (934 m) |
| Area | 50.1 sq mi (129.9 km²) |
| Population Density | 364/sq mi |
| Coordinates | 31.8854°N, 35.8543°W |
| Timezone | Asia/Amman |
Precipitation & Snow
Air Quality
Earthquake History
26 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.3.
| Feb 11, 2004 | 21 km SE of Mi?pé Yeri?o, Israel | M5.3 | 37 km | 27 km |
| Feb 6, 2020 | 26 km W of Atlit, Israel | M4.5 | 146 km | 10 km |
| Jul 7, 2004 | 1 km NNW of Al Kar?mah, Jordan | M4.5 | 28 km | 12 km |
| Feb 9, 2007 | 8 km N of Safi, Jordan | M4.5 | 94 km | 15 km |
| Mar 15, 2004 | 20 km WNW of Al Qa?r, Jordan | M4.3 | 65 km | 12 km |
| Jul 30, 2015 | 24 km NNE of ‘En Boqeq, Israel | M4.2 | 65 km | 13 km |
| Feb 7, 2023 | Dead Sea region | M4.1 | 62 km | 10 km |
| Aug 2, 1993 | 6 km ESE of Arad, Israel | M4.1 | 91 km | 10 km |
| Jan 22, 2022 | 4 km E of Taiyiba, Israel | M4.1 | 87 km | 10 km |
| Aug 4, 1997 | 4 km SW of ‘Ein Qun?ya, Israel | M4.0 | 148 km | 10 km |
| Feb 9, 2007 | 3 km WNW of Al Khinz?rah, Jordan | M4.0 | 95 km | 2 km |
| Aug 8, 2004 | 1 km SSE of Kafr D?n, Palestinian Territory | M4.0 | 86 km | 10 km |
| Sep 28, 1991 | Dead Sea region | M3.9 | 100 km | 10 km |
| Jan 23, 2022 | 4 km ENE of Kafr Mi?r, Israel | M3.7 | 93 km | 10 km |
| Sep 7, 1992 | 18 km W of Ar Rabbah, Jordan | M3.7 | 71 km | 10 km |
| Jan 11, 1992 | 4 km NNE of ‘En Boqeq, Israel | M3.7 | 85 km | 10 km |
| Sep 16, 1994 | 3 km NW of Yarq?, Jordan | M3.6 | 21 km | 10 km |
| Aug 8, 1995 | 5 km ENE of Bardalah, Palestinian Territory | M3.5 | 66 km | 16 km |
| Oct 20, 2013 | 6 km ENE of Migdal, Israel | M3.5 | 111 km | 5 km |
| May 30, 1994 | 12 km SSW of J?sim, Syria | M3.4 | 113 km | 21 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
6 tsunamis recorded within 500 km. Highest wave on record: 8.0 m (26 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1759 | AKKO | Earthquake | 8.0 m | 2,000 | 128 km |
| 2004 | DEAD SEA | Earthquake | 1.0 m | — | 37 km |
| 1837 | ISRAEL and SYRIAN COASTS | Earthquake | — | 6,000 | 128 km |
| 1546 | GAZA - JAFFA | Earthquake | — | — | 36 km |
| 1033 | AKKO | Earthquake | — | 70,000 | 148 km |
| 746 | SYRIAN and EGYPTIAN COASTS | Earthquake | — | — | 36 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Harrat Ash Shamah (170 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Harrat Ash Shamah | Volcanic field | 1,100 m (3,609 ft) | 1850 | 170 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 45°F (7°C) | 2.9 in | Coldest, Wettest |
| February | 47°F (8°C) | 2.8 in | |
| March | 52°F (11°C) | 2.3 in | |
| April | 60°F (16°C) | 0.6 in | |
| May | 68°F (20°C) | 0.2 in | |
| June | 73°F (23°C) | 0.0 in | Driest |
| July | 76°F (24°C) | 0.0 in | |
| August | 76°F (25°C) | 0.0 in | Warmest |
| September | 73°F (23°C) | 0.0 in | |
| October | 68°F (20°C) | 0.2 in | |
| November | 57°F (14°C) | 1.4 in | |
| December | 48°F (9°C) | 2.5 in |
Umm as Summāq has a seasonal temperature swing of 31°F / from 45°F in January to 76°F in August. Total annual precipitation is 12.8 inches, with January being the wettest month (2.9") and June the driest (0.0").