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Climate - Niger


Average weather, temperature, rainfall, sunshine

Flag - Niger

Map - Niger

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In Niger, the climate is desert in the north, semi-desert in the center, and semi-arid of the savanna in the south. In fact, the rains increase from north to south because of the African monsoon, which brings humidity and clouds from the Atlantic Ocean, in the June-September period.
Not surprisingly, the main cities, with the exception of Agadez, are located in the south.

Index


  • The center-north - Bilma, Agadez
  • The south - Niamey

The center-north



The north, part of the Sahara desert, is mild in winter (but with strong temperature variations, so it can get cold at night, while it can get hot during the day, especially in February) and very hot in the rest of the year, and it is almost always sunny.

Bilma

Here are the average temperatures of Bilma, located in the north-east, at 350 meters (1,150 feet) above sea level.
Bilma - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January82617.2467962.9
February113020.4528568.6
March163525.7619678.3
April204029.96810485.8
May2343337410991.4
June264434.77811194.5
July264334.57910994.1
August264234.18010793.3
September244232.77410790.8
October193828.66610183.5
November123322.7549172.8
December92818.3478264.9
Year18.43727.665.198.581.5

The rains in the north are rare and sporadic, however, there may be some rare showers in summer. Here is the average precipitation in Bilma.
Bilma - Average precipitation
MonthMillimetersInchesDays
January100
February000
March000
April100
May100
June101
July30.11
August100.41
September50.21
October20.10
November000
December000
Year250.94

In Bilma, the sun shines all year round, although in summer, some cloud banks can sometimes reach the area. Here are the average sunshine hours per day.
Bilma - Sunshine hours
MonthAverageTotal
January9.5295
February10280
March9.5295
April10.5310
May10.5330
June10.5320
July10305
August10305
September10305
October10315
November10295
December9.5295
Year103650

In winter, in the Djado Plateau and in the Aïr Massif, but sometimes also in the Ténéré Desert, nights can be cold, and the temperature can sometimes drop to around freezing (0 °C or 32 °F), while daytime temperatures are around 20/25 °C (68/77 °F). In winter, a dry wind called Harmattan blows, raising dust and sand, which can veil the sun, especially from January onwards. On the top of the Aïr, on Mont Idoukal-n-Taghès, 2,022 meters (6,634 feet) high, night frosts are frequent. In the rest of the year, in the north, scorching heat reigns supreme, at least in the lowlands, with highs around 40 °C (104 °F) from April to September, and peaks of as high as 50 °C (122 °F).

Ténéré Desert

The central-southern region, known as Sahel, receives rainfall during the summer months. The northernmost part, at the boundary with the previous region, is still desert, and receives little rainfall: in the Aïr Massif and in Agadez, the annual amount is slightly above 100 millimeters (4 inches), with a maximum in August, when 50 mm (2 in) of rain fall in Agadez.

Agadez

Here is the average precipitation in Agadez.
Agadez - Average precipitation
MonthMillimetersInchesDays
January000
February000
March001
April20.11
May60.21
June100.42
July351.44
August5025
September80.32
October001
November000
December000
Year1104.317

In Agadez, the winter nights are not as cold as in Bilma, while summer is less hot.
Agadez - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January132820.9568369.6
February163224.2629075.6
March213628.5699783.3
April254032.77710590.9
May2842358210894.9
June284235.18310795.3
July264033.18010391.5
August253831.67710089
September264032.97910391.3
October243831.37610188.3
November193426.1659379.1
December153022.3588672.1
Year22.336.729.4572.198.185

The sun in Agadez shines all year round, but in summer, some cloud banks can sometimes reach this area.
Agadez - Sunshine hours
MonthAverageTotal
January9.5300
February10280
March9.5295
April9.5290
May9.5300
June9270
July9.5290
August9285
September9.5285
October10305
November10305
December9.5295
Year9.63490

The south



Rainfall in Niger, in inches (left) and millimeters (right)

The map above depicts the lines of equal rainfall (called isohyets) of 100 mm and 600 mm (4 and 23.5 in) per year in the country.
As you can see, rainfall is moderate only in the southernmost part.
In Tahoua, in the south-west, rainfall amounts to 365 mm (14 in) per year, while in the area of Lake Chad, in the south-east, it amounts to about 250/300 mm (10/12 in) per year.

Niamey

In the capital, Niamey, 585 mm (23 in) of rain fall per year, with the first sporadic showers in the afternoon or evening as early as in May, which increase progressively until August, when rainfall reaches 205 mm (8 in), and then they decrease by September and cease in early October. Here is the average precipitation.
Niamey - Average precipitation
MonthMillimetersInchesDays
January000
February000
March40.20
April60.21
May351.43
June702.86
July1556.110
August1706.712
September903.57
October100.42
November100
December000
Year54021.341

In Niamey and in the rest of the south, the temperature also follows a different pattern compared with the north. Winter is hotter, with highs exceeding 30 °C (86 °F) even in January; sometimes, it can get quite cold at night, but with lows of 7/8 °C (45/46 °F), so not around the freezing point as happens in the north. In spring, the temperature rises quickly, in fact, the daytime average reaches 40 °C (104 °F) in March, and it can exceed 45 °C (113 °F) in May, then the monsoon lowers the temperature in summer, but at the cost of an increase in humidity: in August, highs return to 33 °C (91 °F), as in January, although night temperatures are higher and the humidity makes the heat muggy. After the monsoon, hot weather returns, with highs around 37/38 °C (98/100 °F) in October and November, before winter, which brings a bit of cool weather, at least at night.
Here are the average temperatures in Niamey.
Niamey - Average temperatures (1991-2020)
MonthMin (°C)Max (°C)Mean (°C)Min (°F)Max (°F)Mean (°F)
January173224.7639076.5
February203627.9689682.3
March243931.97610389.3
April284234.88210794.6
May294134.78410594.4
June273832.38010090.1
July253529.7769485.4
August243328.3759182.9
September253529.8769585.6
October253831.67710189
November213729.1709984.4
December183425.8649378.5
Year23.536.63074.397.986

In winter, the sky is clear, though the sun may be veiled because of the Harmattan, which raises a fine dust that penetrates everywhere and makes the sky whitish. South-central Niger is one of the hardest-hit areas by the Harmattan across the Sahel. In summer, the sunshine hours decrease a little because of the monsoon, and August is the least sunny month.
Niamey - Sunshine hours
MonthAverageTotal
January9280
February9.5265
March8.5265
April8.5250
May8.5255
June8.5250
July7.5240
August6.5205
September7.5230
October9285
November9.5285
December9275
Year8.43080

To the east of the capital, cities such as Maradi and Zinder have a climate similar to that of Niamey.

Mosque in Niamey

In the far south, rainfall is more abundant, so much so that it exceeds 600 mm (23.5 in) per year; therefore, we are out of the Sahel proper. In Gaya, 825 mm (32.5 in) of rain fall per year, of which 70 mm (2.8 in) fall already in May, and with maximum of and 250 mm (10 in) in August. Here, the landscape becomes definitely green in the summer months. The hottest month in the far south is April, in fact, the temperature begins to decrease as early as in May, while in summer, the heat is tropical, that is, uncomfortable because of high humidity.

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When to go and what to pack in Niger

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 See also (cities or regions):

 Agadez
 Bilma
 Diffa
 Gaya
 Goure
 Maine Soroa
 Maradi
 Niamey
 Tahoua
 Others (expand)
 Tillabery
 Zinder

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 Algeria
 Benin
 Burkina Faso
 Chad
 Libya
 Mali
 Nigeria

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