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The climate of Illizi is
subtropical desert, with very mild winters (but during which it can get cold at night) and very hot, sunny summers.
The oasis is located in south-eastern Algeria, at an altitude of 580 meters (1,900 feet).
We are north of the
Tassili N'Ajjer National Park. The highest peaks of the mountain massif reach 2,000 meters (6,500 feet).
Illizi - Climate data
In Illizi, the
average temperature of the coldest month (January) is of 12.8 °C (55.0 °F), that of the warmest month (July) is of 34.0 °C (93.2 °F). Here are the average temperatures.
Illizi - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
|---|
| January | 5 | 21 | 12.8 | 41 | 69 | 55 |
|---|
| February | 7 | 23 | 15.5 | 45 | 74 | 59.8 |
|---|
| March | 12 | 28 | 20.1 | 53 | 83 | 68.1 |
|---|
| April | 17 | 34 | 25.3 | 63 | 92 | 77.5 |
|---|
| May | 22 | 38 | 30.2 | 72 | 100 | 86.4 |
|---|
| June | 26 | 41 | 33.6 | 78 | 106 | 92.4 |
|---|
| July | 26 | 42 | 34 | 79 | 108 | 93.2 |
|---|
| August | 26 | 42 | 33.7 | 78 | 107 | 92.6 |
|---|
| September | 24 | 39 | 31.8 | 75 | 103 | 89.2 |
|---|
| October | 19 | 34 | 26.3 | 66 | 93 | 79.3 |
|---|
| November | 12 | 27 | 19.3 | 53 | 81 | 66.8 |
|---|
| December | 7 | 22 | 14.3 | 44 | 71 | 57.7 |
|---|
| Year | 16.9 | 32.6 | 24.7 | 62.4 | 90.7 | 76.5 |
|---|
In Illizi,
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 month (August) to 6 mm (0.2 in) in the wettest one (April). Here is the average precipitation.
Illizi - Average precipitation| Month | Millimeters | Inches | Days |
|---|
| January | 4 | 0.1 | 0 |
|---|
| February | 3 | 0.1 | 1 |
|---|
| March | 1 | 0.1 | 1 |
|---|
| April | 6 | 0.2 | 1 |
|---|
| May | 1 | 0 | 1 |
|---|
| June | 2 | 0.1 | 1 |
|---|
| July | 2 | 0.1 | 0 |
|---|
| August | 0 | 0 | 0 |
|---|
| September | 3 | 0.1 | 1 |
|---|
| October | 2 | 0.1 | 1 |
|---|
| November | 1 | 0 | 1 |
|---|
| December | 1 | 0.1 | 1 |
|---|
| Year | 25 | 1 | 8 |
|---|
Illizi - Weather by month
Based on the period 1991-2020
In
January, the coldest month of the year, the weather in Illizi is usually mild. However, there are remarkable differences between night and day. The average temperature is of 12.8 °C (55 °F), with a minimum of 4.9 °C (40.9 °F) and a maximum of 20.6 °C (69 °F).
On the coldest nights of the month, the temperature usually drops to around 0.5 °C (33 °F). However, it dropped to -4 °C (24.8 °F) in January 1995.
On the warmest days of the month, the temperature usually reaches around 27.5 °C (82 °F). However, it reached 35 °C (95 °F) in January 2007.
Precipitation amounts to only 4 mm (0.2 in), distributed over 0 days.
The day lasts on average 10 hours and 40 minutes.
The average humidity is 43%.
The average wind speed is 11 kph (7 mph).
In
February, the weather in Illizi is usually very mild. However, there are remarkable differences between night and day. The average temperature is of 15.5 °C (60 °F), with a minimum of 7.5 °C (45.5 °F) and a maximum of 23.4 °C (74.2 °F).
On the coldest nights of the month, the temperature usually drops to around 2 °C (35.5 °F). However, it dropped to -1.5 °C (29.3 °F) in February 2012.
On the warmest days of the month, the temperature usually reaches around 32 °C (89.5 °F). However, it reached 38.5 °C (101.3 °F) in February 2010.
Precipitation amounts to only 3 mm (0.1 in), and all occurs in one day.
The day lasts on average 11 hours and 20 minutes.
The average humidity is 35%. Hence, the air is normally dry.
The average wind speed is 13 kph (8 mph).
In
March, the weather in Illizi is usually warm. However, there are remarkable differences between night and day. The average temperature is of 20.1 °C (68 °F), with a minimum of 11.9 °C (53.4 °F) and a maximum of 28.2 °C (82.8 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 4.5 °C (40 °F). However, it dropped to -0.4 °C (31.3 °F) in March 2004.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 36.5 °C (98 °F). However, it reached 40.5 °C (104.9 °F) in March 2011.
Precipitation amounts to only 1 mm (0 in), and all occurs in one day.
The day lasts on average 12 hours and 0 minutes.
The average humidity is 28%. Hence, the air is normally dry.
The average wind speed is 14 kph (9 mph).
In
April, the weather in Illizi is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 25.3 °C (78 °F), with a minimum of 17.1 °C (62.8 °F) and a maximum of 33.5 °C (92.3 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 10 °C (49.5 °F). However, it dropped to 5.6 °C (42.1 °F) in April 1994.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 40.5 °C (105 °F). However, it reached 44 °C (111.2 °F) in April 2005.
Precipitation amounts to only 6 mm (0.2 in), and all occurs in one day.
The day lasts on average 12 hours and 50 minutes.
The average humidity is 22%. Hence, the air is normally dry.
The average wind speed is 15 kph (9 mph).
In
May, the weather in Illizi is usually very hot. However, there are remarkable differences between night and day. The average temperature is of 30.2 °C (86 °F), with a minimum of 22.5 °C (72.4 °F) and a maximum of 38 °C (100.4 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 15.5 °C (60 °F). However, it dropped to 10.4 °C (50.7 °F) in May 1992.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 43.5 °C (110 °F). However, it reached 45.3 °C (113.5 °F) in May 1993.
Precipitation amounts to only 1 mm (0 in), and all occurs in one day.
The day lasts on average 13 hours and 30 minutes.
The average humidity is 21%. Hence, the air is normally dry.
The average wind speed is 16 kph (10 mph).
In
June, the weather in Illizi is usually scorchingly hot. However, there are remarkable differences between night and day. The average temperature is of 33.6 °C (92 °F), with a minimum of 25.8 °C (78.4 °F) and a maximum of 41.4 °C (106.4 °F).
On the coldest nights, the temperature usually drops to around 21 °C (69.5 °F). However, it dropped to 17.5 °C (63.5 °F) in June 2007.
On the warmest days, the temperature usually reaches around 45.5 °C (114 °F). However, it reached 49.5 °C (121.1 °F) in June 2012.
Precipitation amounts to only 2 mm (0.1 in), and all occurs in one day.
The day lasts on average 13 hours and 50 minutes. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
The average humidity is 19%. Hence, the air is normally dry.
The average wind speed is 15 kph (9 mph).
In
July, the warmest month of the year, the weather in Illizi is usually scorchingly hot. However, there are remarkable differences between night and day. The average temperature is of 34.0 °C (93 °F), with a minimum of 25.9 °C (78.7 °F) and a maximum of 42 °C (107.7 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (71.5 °F). However, it dropped to 20 °C (68 °F) in July 2004.
On the warmest days of the month, the temperature usually reaches around 46 °C (115 °F). However, it reached 49.8 °C (121.6 °F) in July 2014.
Precipitation amounts to only 2 mm (0.1 in), distributed over 0 days.
The day lasts on average 13 hours and 35 minutes.
The average humidity is 18%. Hence, the air is normally dry.
The average wind speed is 14 kph (9 mph).
In
August, the weather in Illizi is usually scorchingly hot. However, there are remarkable differences between night and day. The average temperature is of 33.7 °C (93 °F), with a minimum of 25.8 °C (78.4 °F) and a maximum of 41.5 °C (106.8 °F).
On the coldest nights of the month, the temperature usually drops to around 22 °C (72 °F). However, it dropped to 19.2 °C (66.6 °F) in August 1992.
On the warmest days of the month, the temperature usually reaches around 44.5 °C (112 °F). However, it reached 51 °C (123.8 °F) in August 2011.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 13 hours and 0 minutes.
The average humidity is 20%. Hence, the air is normally dry.
The average wind speed is 14 kph (8 mph).
In
September, the weather in Illizi is usually very hot. However, there are remarkable differences between night and day. The average temperature is of 31.8 °C (89 °F), with a minimum of 24.1 °C (75.3 °F) and a maximum of 39.4 °C (103 °F).
On the coldest nights, the temperature usually drops to around 19 °C (66.5 °F). However, it dropped to 13.5 °C (56.3 °F) in September 1992.
On the warmest days, the temperature usually reaches around 43.5 °C (110.5 °F). However, it reached 49.2 °C (120.6 °F) in September 1995.
Precipitation amounts to only 3 mm (0.1 in), and all occurs in one day.
The day lasts on average 12 hours and 20 minutes.
The average humidity is 24%. Hence, the air is normally dry.
The average wind speed is 13 kph (8 mph).
In
October, the weather in Illizi is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 26.3 °C (79 °F), with a minimum of 18.6 °C (65.5 °F) and a maximum of 33.9 °C (93 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 13 °C (55.5 °F). However, it dropped to 9.5 °C (49.1 °F) in October 1998.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 39.5 °C (103 °F). However, it reached 42 °C (107.6 °F) in October 1998.
Precipitation amounts to only 2 mm (0.1 in), and all occurs in one day.
The day lasts on average 11 hours and 30 minutes.
The average humidity is 31%. Hence, the air is normally dry.
The average wind speed is 12 kph (7 mph).
In
November, the weather in Illizi is usually warm. However, there are remarkable differences between night and day. The average temperature is of 19.3 °C (67 °F), with a minimum of 11.6 °C (52.9 °F) and a maximum of 27.1 °C (80.7 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 6 °C (42.5 °F). However, it dropped to 1.7 °C (35.1 °F) in November 1998.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 34 °C (93 °F). However, it reached 38 °C (100.4 °F) in November 2003.
Precipitation amounts to only 1 mm (0 in), and all occurs in one day.
The day lasts on average 10 hours and 50 minutes.
The average humidity is 35%.
The average wind speed is 10 kph (6 mph).
In
December, the weather in Illizi is usually mild. However, there are remarkable differences between night and day. The average temperature is of 14.3 °C (58 °F), with a minimum of 6.7 °C (44.1 °F) and a maximum of 21.9 °C (71.4 °F).
On the coldest nights of the month, the temperature usually drops to around 1 °C (34 °F). However, it dropped to -5.5 °C (22.1 °F) in December 1994.
On the warmest days of the month, the temperature usually reaches around 29 °C (84.5 °F). However, it reached 33.5 °C (92.3 °F) in December 2009.
Precipitation amounts to only 1 mm (0 in), and all occurs in one day.
The day lasts on average 10 hours and 30 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
The average humidity is 43%.
The average wind speed is 10 kph (6 mph).