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Climate - Algeria


Average weather, temperature, rainfall, sunshine

Flag - Algeria

Map - Algeria

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In Algeria, the largest African country, there are three types of climate: the mild Mediterranean climate of the coast (zone 1 on the map), the transitional climate of the northern hills and mountains (zone 2), which is a little more continental and moderately rainy, and finally, the desert climate of the vast area occupied by the Sahara (zone 3).

Index


  • The coast - Algiers
  • Mountain areas - Sétif
  • Saharan desert - Biskra, Tamanrasset, In Salah

The coast



In the thin coastal strip, the climate is typically Mediterranean, with mild, rainy winters and hot, sunny summers. The rains are scarcer in the western part (see Oran), where they range between 330 and 400 millimeters (13 and 16 inches) per year; consequently, the landscape here is more arid. In the central and eastern parts (see Algiers, Annaba), the rains are more abundant, in fact they range between 600 and 800 mm (23.5 and 31.5 in). Most of the rains occur between October and April.
By contrast, the temperatures on the coast are rather uniform: the daily average is around 11/12 °C (52/53.5 °F) in January and around 26/27 °C (79/81 °F) in August (which is, albeit slightly, the warmest month). Summer is sunny, with fairly high humidity, but also with the breeze blowing from the sea.
Sometimes, a hot wind coming from the desert, called Chili, can blow: it reaches the coast after climbing the mountains, and it is able to cause a sudden drop in relative humidity and to bring sand and dust; this wind is more frequent in spring and autumn.

Algiers

Algiers, the capital, is located in the central part of the coast. In winter, it is cold on clear nights, especially in the southern suburbs (which are further from the sea), while the days are usually mild. In summer, the weather is usually hot and sunny, with the breeze blowing from the sea.
Here are the average temperatures.
Algiers - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January51711.2426352.1
February51711.4426352.5
March72013.5456856.2
April92215.4487159.7
May122518.7547765.7
June162922.5618472.6
July193225.7679078.2
August203326.6699179.8
September183023.8648674.8
October142720.3578068.6
November102115.5507059.9
December71812.4446554.3
Year1224.318.0553.675.764.5

Precipitation totals 600 mm (23.5 in) per year, and follows the typical Mediterranean pattern: the wettest period is from November to January, while it rains very rarely in summer. Here is the average precipitation.
Algiers - Average precipitation
MonthMillimetersInchesDays
January803.111
February75310
March552.29
April602.411
May401.67
June90.43
July50.22
August80.33
September301.25
October602.49
November903.511
December903.512
Year60023.692

In Algiers, the sun shines regularly in summer, while in the other seasons, there may be sunny days, but also cloudy and rainy days. Here are the average sunshine hours per day.
Algiers - Sunshine hours
MonthAverageTotal
January4.5140
February5.5160
March6.5210
April7.5230
May9.5300
June10300
July11.5355
August10.5325
September9265
October6.5200
November5155
December4.5145
Year7.62775

The sea is warm enough for swimming from July to September, while in June, it's still a bit cool. In the eastern part of the coast (see Annaba), the sea is a bit warmer than in the western part (see Oran), which is located near the Alborán Sea, where the Mediterranean water mixes with the Atlantic water.
Here is the average water temperature in Algiers, located in the central part.
Algiers - Sea temperature
MonthCelsius (°C)Fahrenheit (°F)
January1660
February1559
March1560
April1662
May1865
June2170
July2475
August2678
September2576
October2272
November1967
December1762
Year19.667.3

Algiers

Mountainous areas



In the north of Algeria, we find a mountainous belt parallel to the coast, which divides it from the desert. There are two mountain ranges, Tell Atlas and Saharan Atlas; the former is wetter because it's more often affected by humid winds from the sea, and in winter it's snowy, so much so that there are a few winter resorts (see Chréa, Tikjda) where you can go skiing, especially from December to March.
Between the two ranges, we find a plateau, with several cities located between 1,000 and 1,300 meters (3,300 and 4,200 feet). Here, the climate is slightly continental, with cold winters and hot summers.

Sétif

For example, in Sétif, at 1,000 meters (3,300 feet) above sea level, the daily average ranges from 5.5 °C (42 °F) in January to 26.5 °C (79 °F) in July. So, the summer here is as hot as on the coast, but the humidity is lower, in addition, the temperature is higher during the day and lower at night. Winter is rather cold, especially when cold air masses arrive from Europe, which can at times bring even snow and frost. Here are the average temperatures.
Sétif - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January1105.5335041.9
February1116.2345243.2
March4159.2385948.5
April61812436553.6
May102416.9507462.4
June153022.3598672.1
July193426.3659379.4
August183325.9659278.6
September142720.9588169.6
October102216.2507261.1
November51510415950
December2116.4355243.5
Year8.820.914.8547.869.758.5

In Sétif, precipitation amounts to 400 mm (16 in) per year and follows the Mediterranean pattern, ie with a maximum in winter and a minimum in summer, when, however, some rare thunderstorms are possible. Here is the average precipitation.
Sétif - Average precipitation
MonthMillimetersInchesDays
January401.610
February301.29
March401.69
April451.88
May401.67
June200.84
July130.52
August200.84
September401.67
October301.27
November351.49
December401.610
Year39015.486

A similar climate is found in other towns of the area, with a few variations due to altitude and slope exposure, such as Batna, 1,000 meters (3,300 feet) above sea level, Constantine, 770 meters (2,500 feet), and Tebessa, 800 meters (2,600 feet).

Snow in Setif

Saharan Desert



In the vast Algerian desert, the climate is hot and dry during the long summer months, and it's also progressively hotter and drier as you proceed towards the south. In winter, the warmest area is the far south, where the temperature during the day is around 25/27 °C (77/80 °F), while the hottest area in summer lies between the 24th and the 30th parallel, since the far south is reached by the extreme offshoot of the African monsoon, which bring a bit of cloudiness and occasional downpours. The rains are very rare in the whole area, below 100 mm (4 in) per year, and often below 50 mm (2 in); they occur in the form of downpours, and are more likely in winter in the north, and as mentioned, in summer in the far south.
The sky in the desert is almost always clear, and this favors a wide temperature range between night and day, which is often around 20 degrees Celsius (35 degrees Fahrenheit). During winter, the temperature can drop below freezing at night, albeit slightly, while the days remain mild.
In the desert, sand storms can occur at any time, especially in the vast areas covered with sand dunes, called ergs.

Biskra

In the northern part of the desert, the average maximum temperature in July and August is around 40/41 °C (104/106 °F) in Biskra, the "Gateway of the Sahara", located just south of the Saharan Atlas, and around 41/42 °C (106/108 °F) in Touggourt. The heat records, which are set during hot air invasions from the south, are around 48/49 °C (118/120 °F). Here are the average temperatures in Biskra.
Biskra - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January71712.1456353.8
February81913.7476756.7
March112317.3537463.1
April152721598169.9
May203226.1689079
June253831.27610088.1
July284134.58210694
August2840348210493.2
September233529749484.1
October182923.6658474.5
November122217.1547262.8
December81813476455.4
Year1728.522.762.683.473

In Biskra, rainfall amounts to 155 mm (6 in) per year. Here is the average rainfall.
Biskra - Average precipitation
MonthMillimetersInchesDays
January120.54
February70.34
March200.84
April150.63
May100.43
June50.21
July60.21
August20.11
September2514
October150.63
November150.63
December140.54
Year1556.132

In the south-east of the country, in the middle of the desert, there is a mountain massif, called Hoggar, whose highest peak is Mount Tahat, 2,908 meters (9,541 feet) high. Here, the rains, still at desert-like levels, are slightly more frequent than in the surrounding areas. North of Hoggar, but still in a mountainous region, we find the Tassili N'Ajjer National Park, a rocky desert, with deep canyons and lunar landscapes, but also some verdant oasis.

Tamanrasset

The city of Tamanrasset, 1,400 meters (4,600 feet) above sea level, has a very salubrious climate, dry and sunny all year round, and tempered by the altitude: in winter, it can get cold at night, while the days remain mild, whereas in summer, the heat is intense, but not as intense as at sea level, in fact, average highs are around 35/36 °C (95/97 °F), with possible peaks around 40/42 °C (104/108 °F).
Tamanrasset - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January52012.8426955.1
February82215.2467259.3
March122618.9537966
April163123.4618774.1
May213427.2699381
June243629.6749685.3
July243629.8759685.7
August233529.2749584.5
September223427.9729382.2
October173023.6638674.5
November112518.2527764.7
December72214.5457158.2
Year15.929.222.560.784.572.5

Raifall in Tamanrasset, rare and sporadic, is slightly above 50 mm (2 in) per year. In the lowlands of this southern part of the desert, it is even scarcer. Here is the average precipitation in Tamanrasset.
Tamanrasset - Average precipitation
MonthMillimetersInchesDays
January20.11
February20.11
March50.21
April20.10
May50.21
June70.33
July50.22
August80.35
September80.33
October70.32
November100
December20.11
Year552.219

The situation is quite different in the lowlands of the central-southern part of the desert. In oases like Timimoun, In Salah, Aoulef and Reggane, the average maximum in July is around 45/46 °C (113/115 °F), and the highest records are around 50/51 °C (122/124 °F). In summer, this is one of the hottest regions in the world.

In Salah

In Salah is an oasis located in the center of the country, in the province of Tamanrasset, at 290 meters (950 feet) of altitude. Here are the average temperatures.
In Salah - Average temperatures (2000-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January72214.7457258.5
February102517.5507763.4
March143022578671.6
April183526.5659479.6
May243931.77510389
June284435.88211096.4
July314638.488114101.2
August314537.58711299.6
September274234.58110794.1
October213628.5719683.2
November132820.5568268.9
December92316.2497361.1
Year19.634.426.9567.39480.5

In In Salah, the sun shines all year round.
In Salah - Sunshine hours
MonthAverageTotal
January9275
February9.5265
March10.5330
April11335
May11.5355
June11.5350
July12380
August12370
September11325
October10305
November9.5280
December8.5265
Year10.53830

Owing to the aforementioned marginal influence of the African monsoon, the amount of sunshine in summer slightly decreases in the south and in the Hoggar Massif (where there are 10 hours of sunshine per day, compared with 12 hours in the central and northern regions).

Tassili N'Ajjer
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 See also (cities or regions):

 Adrar
 Algiers
 Annaba
 Batna
 Bechar
 Bejaia
 Biskra
 Bou Saada
 Chlef
 Others (expand)
 Constantine
 Djanet
 Djelfa
 El Menia
 El Oued
 Ghardaia
 Hassi Messaoud
 Illizi
 In Amenas
 In Salah
 Jijel
 Mecheria
 Oran
 Ouargla
 Sétif
 Skikda
 Tamanrasset
 Tebessa
 Tiaret
 Timimoun
 Tindouf
 Tlemcen
 Touggourt

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