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Bilma's climate is
subtropical desert.
The town is located near an oasis in north-eastern Niger, at 355 meters (1,165 feet) above sea level.
In winter, from December to February, nights are very cool, and can sometimes be cold. From July to September, sometimes cloud banks can pass and there may be some rain, due to the African monsoon, which affects southern Niger more directly.
Bilma - Climate data
In Bilma, the
average temperature of the coldest month (January) is of 17.2 °C (62.9 °F), that of the warmest month (June) is of 34.7 °C (94.5 °F). Here are the average temperatures.
Bilma - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
|---|
| January | 8 | 26 | 17.2 | 46 | 79 | 62.9 |
|---|
| February | 11 | 30 | 20.4 | 52 | 85 | 68.6 |
|---|
| March | 16 | 35 | 25.7 | 61 | 96 | 78.3 |
|---|
| April | 20 | 40 | 29.9 | 68 | 104 | 85.8 |
|---|
| May | 23 | 43 | 33 | 74 | 109 | 91.4 |
|---|
| June | 26 | 44 | 34.7 | 78 | 111 | 94.5 |
|---|
| July | 26 | 43 | 34.5 | 79 | 109 | 94.1 |
|---|
| August | 26 | 42 | 34.1 | 80 | 107 | 93.3 |
|---|
| September | 24 | 42 | 32.7 | 74 | 107 | 90.8 |
|---|
| October | 19 | 38 | 28.6 | 66 | 101 | 83.5 |
|---|
| November | 12 | 33 | 22.7 | 54 | 91 | 72.8 |
|---|
| December | 9 | 28 | 18.3 | 47 | 82 | 64.9 |
|---|
| Year | 18.4 | 37 | 27.6 | 65.1 | 98.5 | 81.5 |
|---|
In Bilma,
precipitation amounts to 25 millimeters (1 inches) per year: it is therefore at a desert level. It ranges from 0 mm (0 in) in the driest months (February, March, November, December) to 10 mm (0.4 in) in the wettest one (August). Here is the average precipitation.
Bilma - Average precipitation| Month | Millimeters | Inches | Days |
|---|
| January | 1 | 0 | 0 |
|---|
| February | 0 | 0 | 0 |
|---|
| March | 0 | 0 | 0 |
|---|
| April | 1 | 0 | 0 |
|---|
| May | 1 | 0 | 0 |
|---|
| June | 1 | 0 | 1 |
|---|
| July | 3 | 0.1 | 1 |
|---|
| August | 10 | 0.4 | 1 |
|---|
| September | 5 | 0.2 | 1 |
|---|
| October | 2 | 0.1 | 0 |
|---|
| November | 0 | 0 | 0 |
|---|
| December | 0 | 0 | 0 |
|---|
| Year | 25 | 0.9 | 4 |
|---|
In Bilma, there are on average around 3650
sunshine hours per year. Here are the average hours of sunshine per day.
Bilma - Sunshine hours| Month | Average | Total |
|---|
January | 9.5 | 295 | February | 10 | 280 | March | 9.5 | 295 | April | 10.5 | 310 | May | 10.5 | 330 | June | 10.5 | 320 | July | 10 | 305 | August | 10 | 305 | September | 10 | 305 | October | 10 | 315 | November | 10 | 295 | December | 9.5 | 295 | Year | 10 | 3650 |
Bilma - Weather by month
Based on the period 1991-2020
In
January, the coldest month of the year, the weather in Bilma is usually very mild. However, there are remarkable differences between night and day. The average temperature is of 17.2 °C (63 °F), with a minimum of 7.9 °C (46.3 °F) and a maximum of 26.4 °C (79.5 °F).
On the coldest nights of the month, the temperature usually drops to around 1 °C (34 °F). However, it dropped to -2.4 °C (27.7 °F) in January 1995.
On the warmest days of the month, the temperature usually reaches around 33 °C (91 °F). However, it reached 37 °C (98.6 °F) in January 2005.
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 85% of the time.
The average humidity is 30%. Hence, the air is normally dry.
The average wind speed is 9 kph (5 mph).
In
February, the weather in Bilma is usually warm. However, there are remarkable differences between night and day. The average temperature is of 20.4 °C (69 °F), with a minimum of 11 °C (51.9 °F) and a maximum of 29.7 °C (85.4 °F).
On the coldest nights of the month, the temperature usually drops to around 3.5 °C (38.5 °F). However, it dropped to 0.3 °C (32.5 °F) in February 1993.
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F). However, it reached 41.8 °C (107.2 °F) in February 2010.
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 35 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 85% of the time.
The average humidity is 24%. Hence, the air is normally dry.
The average wind speed is 10 kph (6 mph).
In
March, the weather in Bilma is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 25.7 °C (78 °F), with a minimum of 16.1 °C (61.1 °F) and a maximum of 35.3 °C (95.5 °F).
On the coldest nights, the temperature usually drops to around 8 °C (47 °F). However, it dropped to 2.6 °C (36.7 °F) in March 2014.
On the warmest days, the temperature usually reaches around 41 °C (105.5 °F). However, it reached 44.4 °C (111.9 °F) in March 1993.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 12 hours and 5 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 19%. Hence, the air is normally dry.
The average wind speed is 9 kph (6 mph).
In
April, the weather in Bilma is usually very hot. However, there are remarkable differences between night and day. The average temperature is of 29.9 °C (86 °F), with a minimum of 20 °C (68.1 °F) and a maximum of 39.8 °C (103.6 °F).
On the coldest nights, the temperature usually drops to around 12.5 °C (55 °F). However, it dropped to 8.5 °C (47.3 °F) in April 2015.
On the warmest days, the temperature usually reaches around 44 °C (111.5 °F). However, it reached 46.6 °C (115.9 °F) in April 2020.
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 10.5 hours of sunshine per day. So, the sun shines 83% of the time.
The average humidity is 17%. Hence, the air is normally dry.
The average wind speed is 8 kph (5 mph).
In
May, the weather in Bilma is usually scorchingly hot. However, there are remarkable differences between night and day. The average temperature is of 33.0 °C (91 °F), with a minimum of 23.2 °C (73.8 °F) and a maximum of 42.7 °C (108.9 °F).
On the coldest nights, the temperature usually drops to around 17 °C (62 °F). However, it dropped to 11 °C (51.8 °F) in May 2003.
On the warmest days, the temperature usually reaches around 45.5 °C (114.5 °F). However, it reached 47.1 °C (116.8 °F) in May 1998.
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
The day lasts on average 13 hours and 0 minutes.
There are on average 10.5 hours of sunshine per day. So, the sun shines 82% of the time.
The average humidity is 18%. Hence, the air is normally dry.
The average wind speed is 7 kph (4 mph).
In
June, the hottest month of the year, the weather in Bilma is usually scorchingly hot. However, there are remarkable differences between night and day. The average temperature is of 34.7 °C (95 °F), with a minimum of 25.6 °C (78.2 °F) and a maximum of 43.8 °C (110.9 °F).
On the coldest nights, the temperature usually drops to around 20 °C (67.5 °F). However, it dropped to 16.5 °C (61.7 °F) in June 2001.
On the warmest days, the temperature usually reaches around 46.5 °C (115.5 °F). However, it reached 49 °C (120.2 °F) in June 2016.
Precipitation amounts to only 1 mm (0 in), and all occurs in one day.
The day lasts on average 13 hours and 10 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 10.5 hours of sunshine per day. So, the sun shines 81% of the time.
The average humidity is 21%. Hence, the air is normally dry.
The average wind speed is 6 kph (4 mph).
In
July, the weather in Bilma is usually scorchingly hot. However, there are remarkable differences between night and day. The average temperature is of 34.5 °C (94 °F), with a minimum of 26.2 °C (79.2 °F) and a maximum of 42.8 °C (109 °F).
On the coldest nights of the month, the temperature usually drops to around 20.5 °C (69.5 °F). However, it dropped to 17.7 °C (63.9 °F) in July 2004.
On the warmest days of the month, the temperature usually reaches around 45.5 °C (113.5 °F). However, it reached 47 °C (116.6 °F) in July 2010.
Precipitation amounts to only 3 mm (0.1 in), and all occurs in one day.
The day lasts on average 13 hours and 5 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 27%. Hence, the air is normally dry.
The average wind speed is 6 kph (4 mph).
In
August, the weather in Bilma is usually scorchingly hot. However, there are remarkable differences between night and day. The average temperature is of 34.1 °C (93 °F), with a minimum of 26.5 °C (79.6 °F) and a maximum of 41.7 °C (107 °F).
On the coldest nights of the month, the temperature usually drops to around 21 °C (70 °F). However, it dropped to 15.2 °C (59.4 °F) in August 1997.
On the warmest days of the month, the temperature usually reaches around 44.5 °C (112.5 °F). However, it reached 46 °C (114.8 °F) in August 2006.
Precipitation amounts to 10 mm (0.4 in), and all occurs in one day.
The day lasts on average 12 hours and 40 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 78% of the time.
The average humidity is 34%. Hence, the air is normally dry.
The average wind speed is 6 kph (4 mph).
In
September, the weather in Bilma is usually scorchingly hot. However, there are remarkable differences between night and day. The average temperature is of 32.7 °C (91 °F), with a minimum of 23.6 °C (74.5 °F) and a maximum of 41.7 °C (107.1 °F).
On the coldest nights, the temperature usually drops to around 18 °C (64.5 °F). However, it dropped to 14.8 °C (58.6 °F) in September 1992.
On the warmest days, the temperature usually reaches around 44 °C (111 °F). However, it reached 45.2 °C (113.4 °F) in September 2019.
Precipitation amounts to only 5 mm (0.2 in), and all occurs in one day.
The day lasts on average 12 hours and 10 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 83% of the time.
The average humidity is 26%. Hence, the air is normally dry.
The average wind speed is 6 kph (4 mph).
In
October, the weather in Bilma is usually very hot. However, there are remarkable differences between night and day. The average temperature is of 28.6 °C (84 °F), with a minimum of 18.8 °C (65.8 °F) and a maximum of 38.5 °C (101.3 °F).
On the coldest nights, the temperature usually drops to around 12 °C (53.5 °F). However, it dropped to 8.9 °C (48 °F) in October 2020.
On the warmest days, the temperature usually reaches around 42 °C (107.5 °F). However, it reached 44 °C (111.2 °F) in October 2010.
Precipitation amounts to only 2 mm (0.1 in), distributed over 0 days.
The day lasts on average 11 hours and 40 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 87% of the time.
The average humidity is 25%. Hence, the air is normally dry.
The average wind speed is 8 kph (5 mph).
In
November, the weather in Bilma is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 22.7 °C (73 °F), with a minimum of 12.5 °C (54.5 °F) and a maximum of 32.8 °C (91.1 °F).
On the coldest nights, the temperature usually drops to around 6.5 °C (43.5 °F). However, it dropped to 3.4 °C (38.1 °F) in November 1992.
On the warmest days, the temperature usually reaches around 37.5 °C (99.5 °F). However, it reached 41.5 °C (106.7 °F) in November 2001.
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 10 minutes.
There are on average 10 hours of sunshine per day. So, the sun shines 89% of the time.
The average humidity is 28%. Hence, the air is normally dry.
The average wind speed is 6 kph (4 mph).
In
December, the weather in Bilma is usually warm. However, there are remarkable differences between night and day. The average temperature is of 18.3 °C (65 °F), with a minimum of 8.6 °C (47.4 °F) and a maximum of 28 °C (82.4 °F).
On the coldest nights of the month, the temperature usually drops to around 2 °C (36 °F). However, it dropped to -0.5 °C (31.1 °F) in December 1999.
On the warmest days of the month, the temperature usually reaches around 32.5 °C (91 °F). However, it reached 36.5 °C (97.7 °F) in December 2020.
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 0 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 9.5 hours of sunshine per day. So, the sun shines 86% of the time.
The average humidity is 32%. Hence, the air is normally dry.
The average wind speed is 7 kph (4 mph).