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The climate of Niamey is
tropical semi-arid, with a rainy season from June to September.
The city is the capital of Niger and is located in the south-west of the country, on the banks of the Niger River, at an altitude of 200 meters (655 feet).
We are in the Sahel area, which receives rainfall in the summer, brought by the African monsoon. The hottest time of the year is from April to June, before the rains.
Niamey - Climate data
In Niamey, the
average temperature of the coldest month (January) is of 24.7 °C (76.5 °F), that of the warmest month (April) is of 34.8 °C (94.6 °F). Here are the average temperatures.
Niamey - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
|---|
| January | 17.1 | 32.4 | 24.7 | 63 | 90 | 76.5 |
|---|
| February | 20.1 | 35.8 | 27.9 | 68 | 96 | 82.3 |
|---|
| March | 24.2 | 39.5 | 31.9 | 76 | 103 | 89.3 |
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| April | 27.9 | 41.6 | 34.8 | 82 | 107 | 94.6 |
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| May | 28.6 | 40.7 | 34.7 | 84 | 105 | 94.4 |
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| June | 26.6 | 38 | 32.3 | 80 | 100 | 90.1 |
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| July | 24.7 | 34.7 | 29.7 | 76 | 94 | 85.4 |
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| August | 23.8 | 32.8 | 28.3 | 75 | 91 | 82.9 |
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| September | 24.6 | 34.9 | 29.8 | 76 | 95 | 85.6 |
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| October | 25.2 | 38.1 | 31.6 | 77 | 101 | 89 |
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| November | 21.1 | 37.1 | 29.1 | 70 | 99 | 84.4 |
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| December | 17.9 | 33.8 | 25.8 | 64 | 93 | 78.5 |
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| Year | 23.5 | 36.6 | 30 | 74.3 | 97.9 | 86 |
|---|
In Niamey,
precipitation amounts to 540 millimeters (21.3 inches) per year: so, it is at an intermediate level. It ranges from 0 mm (0 in) in the driest months (January, February, December) to 170 mm (6.7 in) in the wettest one (August). Here is the average precipitation.
Niamey - Average precipitation| Month | Millimeters | Inches | Days |
|---|
| January | 0 | 0 | 0 |
|---|
| February | 0 | 0 | 0 |
|---|
| March | 4 | 0.2 | 0 |
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| April | 6 | 0.2 | 1 |
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| May | 35 | 1.4 | 3 |
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| June | 70 | 2.8 | 6 |
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| July | 155 | 6.1 | 10 |
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| August | 170 | 6.7 | 12 |
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| September | 90 | 3.5 | 7 |
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| October | 10 | 0.4 | 2 |
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| November | 1 | 0 | 0 |
|---|
| December | 0 | 0 | 0 |
|---|
| Year | 540 | 21.3 | 41 |
|---|
In Niamey, there are on average around 3080
sunshine hours per year. Here are the average hours of sunshine per day.
Niamey - Sunshine hours| Month | Average | Total |
|---|
January | 9 | 280 | February | 9.5 | 265 | March | 8.5 | 265 | April | 8.5 | 250 | May | 8.5 | 255 | June | 8.5 | 250 | July | 7.5 | 240 | August | 6.5 | 205 | September | 7.5 | 230 | October | 9 | 285 | November | 9.5 | 285 | December | 9 | 275 | Year | 8.4 | 3080 |
Niamey - Weather by month
Based on the period 1991-2020
In
January, the coldest month of the year, the weather in Niamey is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 24.7 °C (77 °F), with a minimum of 17.1 °C (62.8 °F) and a maximum of 32.4 °C (90.2 °F).
On the coldest nights of the month, the temperature usually drops to around 13 °C (55.5 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (98.5 °F). However, it reached 40.6 °C (105.1 °F) in January 1998.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 11 hours and 25 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 18%. Hence, the air is normally dry.
The average wind speed is 14 kph (8 mph).
In
February, the weather in Niamey is usually very hot. However, there are remarkable differences between night and day. The average temperature is of 27.9 °C (82 °F), with a minimum of 20.1 °C (68.1 °F) and a maximum of 35.8 °C (96.4 °F).
On the coldest nights of the month, the temperature usually drops to around 15.5 °C (60 °F).
On the warmest days of the month, the temperature usually reaches around 40.5 °C (104.5 °F). However, it reached 43 °C (109.4 °F) in February 2013.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 11 hours and 40 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 80% of the time.
The average humidity is 14%. Hence, the air is normally dry.
The average wind speed is 14 kph (8 mph).
In
March, the weather in Niamey is usually very hot. However, there are remarkable differences between night and day. The average temperature is of 31.9 °C (89 °F), with a minimum of 24.2 °C (75.6 °F) and a maximum of 39.5 °C (103.1 °F).
On the coldest nights, the temperature usually drops to around 19 °C (66.5 °F).
On the warmest days, the temperature usually reaches around 43 °C (109 °F). However, it reached 45 °C (113 °F) in March 2002.
Precipitation amounts to only 4 mm (0.2 in), distributed over 0 days.
The day lasts on average 12 hours and 5 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 13%. Hence, the air is normally dry.
The average wind speed is 12 kph (8 mph).
In
April, the warmest month of the year, the weather in Niamey is usually scorchingly hot. However, there are remarkable differences between night and day. The average temperature is of 34.8 °C (95 °F), with a minimum of 27.9 °C (82.2 °F) and a maximum of 41.6 °C (106.9 °F).
On the coldest nights, the temperature usually drops to around 22.5 °C (72.5 °F).
On the warmest days, the temperature usually reaches around 44.5 °C (112.5 °F). However, it reached 46.2 °C (115.2 °F) in April 2010.
Precipitation amounts to only 6 mm (0.2 in), and all occurs in one day.
The day lasts on average 12 hours and 30 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 21%. Hence, the air is normally dry.
The average wind speed is 12 kph (7 mph).
In
May, the weather in Niamey is usually scorchingly hot. The average temperature is of 34.7 °C (94 °F), with a minimum of 28.6 °C (83.6 °F) and a maximum of 40.7 °C (105.2 °F).
On the coldest nights, the temperature usually drops to around 23 °C (73.5 °F).
On the warmest days, the temperature usually reaches around 44 °C (111.5 °F). However, it reached 46 °C (114.8 °F) in May 2019.
Precipitation amounts to 35 mm (1.4 in), distributed over 3 days.
The day lasts on average 12 hours and 50 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 37%.
The average wind speed is 14 kph (8 mph).
In
June, the weather in Niamey is usually scorchingly hot. The average temperature is of 32.3 °C (90 °F), with a minimum of 26.6 °C (79.9 °F) and a maximum of 38 °C (100.4 °F).
On the coldest nights, the temperature usually drops to around 21 °C (69.5 °F).
On the warmest days, the temperature usually reaches around 42.5 °C (108 °F). However, it reached 43.5 °C (110.3 °F) in June 2013.
Precipitation amounts to 70 mm (2.8 in), distributed over 6 days.
The day lasts on average 12 hours and 55 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 49%.
The average wind speed is 14 kph (9 mph).
In
July, the weather in Niamey is usually very hot. The average temperature is of 29.7 °C (85 °F), with a minimum of 24.7 °C (76.4 °F) and a maximum of 34.7 °C (94.4 °F).
On the coldest nights of the month, the temperature usually drops to around 20 °C (68 °F).
On the warmest days of the month, the temperature usually reaches around 39 °C (102.5 °F). However, it reached 42.3 °C (108.1 °F) in July 1992.
Precipitation amounts to 155 mm (6.1 in), distributed over 10 days.
The day lasts on average 12 hours and 50 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 63%.
The average wind speed is 13 kph (8 mph).
In
August, the weather in Niamey is usually very hot and muggy. The average temperature is of 28.3 °C (83 °F), with a minimum of 23.8 °C (74.8 °F) and a maximum of 32.8 °C (91.1 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (68.5 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (99 °F). However, it reached 40 °C (104 °F) in August 2014.
Precipitation amounts to 170 mm (6.7 in), distributed over 12 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 52% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
In
September, the weather in Niamey is usually very hot. The average temperature is of 29.8 °C (86 °F), with a minimum of 24.6 °C (76.3 °F) and a maximum of 34.9 °C (94.9 °F).
On the coldest nights, the temperature usually drops to around 20 °C (68.5 °F).
On the warmest days, the temperature usually reaches around 39 °C (102.5 °F). However, it reached 41.8 °C (107.2 °F) in September 2013.
Precipitation amounts to 90 mm (3.5 in), distributed over 7 days.
The day lasts on average 12 hours and 10 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 65%.
The average wind speed is 10 kph (7 mph).
In
October, the weather in Niamey is usually very hot. The average temperature is of 31.6 °C (89 °F), with a minimum of 25.2 °C (77.4 °F) and a maximum of 38.1 °C (100.5 °F).
On the coldest nights, the temperature usually drops to around 21 °C (70 °F).
On the warmest days, the temperature usually reaches around 40.5 °C (105.5 °F). However, it reached 41.4 °C (106.5 °F) in October 1997.
Precipitation amounts to 10 mm (0.4 in), distributed over 2 days.
The day lasts on average 11 hours and 50 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 78% of the time.
The average humidity is 43%.
The average wind speed is 9 kph (6 mph).
In
November, the weather in Niamey is usually very hot. However, there are remarkable differences between night and day. The average temperature is of 29.1 °C (84 °F), with a minimum of 21.1 °C (70 °F) and a maximum of 37.1 °C (98.7 °F).
On the coldest nights, the temperature usually drops to around 17 °C (63 °F).
On the warmest days, the temperature usually reaches around 39.5 °C (103 °F). However, it reached 41 °C (105.8 °F) in November 1997.
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
The day lasts on average 11 hours and 30 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 83% of the time.
The average humidity is 21%. Hence, the air is normally dry.
The average wind speed is 10 kph (6 mph).
In
December, the weather in Niamey is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 25.8 °C (79 °F), with a minimum of 17.9 °C (64.3 °F) and a maximum of 33.8 °C (92.8 °F).
On the coldest nights of the month, the temperature usually drops to around 14 °C (57 °F).
On the warmest days of the month, the temperature usually reaches around 37 °C (99 °F). However, it reached 39.5 °C (103.1 °F) in December 2005.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 11 hours and 20 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 20%. Hence, the air is normally dry.
The average wind speed is 12 kph (8 mph).