All Countries
Weather & Climate in Hennaya, Algeria
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hennaya enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 49°F in January while summers reach 79°F in July. The area gets 305 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 17.1 inches (drier than the 38-inch national average). The city sits at an elevation of 1,411 feet.
Temperature
49°F Jan (9°C)
79°F Jul (26°C)
| Annual Average | 62.6°F |
| 16% above US avg | |
| January Average | 49°F (9°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 305 days/yr |
Geography
| Elevation | 1,411 ft (430 m) |
| Area | 38.3 sq mi (99.3 km²) |
| Population Density | 692/sq mi |
| Coordinates | 34.9514°N, 1.3681°W |
| Timezone | Africa/Algiers |
Precipitation & Snow
Air Quality
Earthquake History
269 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.9.
| Aug 18, 1994 | 8 km E of Sig, Algeria | M5.9 | 131 km | 9 km |
| Dec 22, 1999 | 9 km ENE of Beni Saf, Algeria | M5.6 | 42 km | 10 km |
| Jun 6, 2008 | 17 km NNE of Mers el Kebir, Algeria | M5.5 | 122 km | 4 km |
| May 23, 1993 | 39 km NW of Saidia, Morocco | M5.4 | 113 km | 27 km |
| Mar 12, 1992 | 36 km E of Melilla, Spain | M5.3 | 113 km | 22 km |
| Jul 24, 2008 | 10 km NW of Bou Tlelis, Algeria | M4.9 | 85 km | 22 km |
| Jul 11, 2017 | 62 km NNW of Beni Saf, Algeria | M4.8 | 100 km | 10 km |
| Dec 22, 1999 | 1 km SE of Beni Saf, Algeria | M4.6 | 38 km | 10 km |
| Jan 9, 2008 | 6 km SE of Es Senia, Algeria | M4.6 | 104 km | 10 km |
| Jun 26, 2022 | 14 km NW of Aïn el Bya, Algeria | M4.6 | 139 km | 10 km |
| Aug 18, 1994 | 7 km E of Sig, Algeria | M4.5 | 131 km | 10 km |
| Jun 6, 2008 | 13 km NNE of Mers el Kebir, Algeria | M4.5 | 118 km | 0 km |
| Dec 10, 1998 | 11 km SE of Sig, Algeria | M4.5 | 129 km | 10 km |
| Dec 21, 1992 | 39 km ENE of Melilla, Spain | M4.4 | 115 km | 13 km |
| May 21, 2005 | 8 km W of El Malah, Algeria | M4.4 | 51 km | 19 km |
| Jul 8, 2017 | 70 km NW of El Amria, Algeria | M4.3 | 109 km | 10 km |
| Jul 7, 2005 | 1 km SSW of Mers el Kebir, Algeria | M4.3 | 103 km | 0 km |
| Mar 6, 2015 | 8 km SW of Zaïo, Morocco | M4.3 | 131 km | 5 km |
| Mar 13, 1992 | 28 km NW of Saidia, Morocco | M4.3 | 104 km | 17 km |
| Dec 1, 1997 | 9 km NNE of Aïn el Bya, Algeria | M4.3 | 145 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 1.8 m (6 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1790 | ORAN | Earthquake | 1.8 m | 3,000 | 109 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 49°F (9°C) | 2.2 in | Coldest |
| February | 51°F (10°C) | 2.4 in | Wettest |
| March | 54°F (12°C) | 2.2 in | |
| April | 58°F (15°C) | 1.8 in | |
| May | 65°F (18°C) | 1.4 in | |
| June | 72°F (22°C) | 0.5 in | |
| July | 79°F (26°C) | 0.1 in | Driest |
| August | 80°F (27°C) | 0.2 in | Warmest |
| September | 73°F (23°C) | 0.8 in | |
| October | 65°F (18°C) | 1.3 in | |
| November | 56°F (13°C) | 2.1 in | |
| December | 50°F (10°C) | 2.2 in |
Hennaya has a seasonal temperature swing of 31°F / from 49°F in January to 80°F in August. Total annual precipitation is 17.1 inches, with February being the wettest month (2.4") and July the driest (0.1").