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The climate of Grootfontein is
sub-tropical arid, tempered by altitude, with a hot, rainy season from November to March and a long dry season from April to October, within which there is a cool period from May to August. In the latter, at night the temperature can drop down to the freezing point or slightly below. During the day, it can get very hot from September to March.
The city is located in the northeast of Namibia, at 1,400 meters (4,600 feet) above sea level.
Grootfontein - Climate data
In Grootfontein, the
average temperature of the coldest month (July) is of 15.5 °C (59.8 °F), that of the warmest month (November) is of 25.3 °C (77.6 °F). Here are the average temperatures.
Grootfontein - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
|---|
| January | 18 | 31 | 24.5 | 64 | 88 | 76 |
|---|
| February | 18 | 31 | 24.4 | 64 | 88 | 75.9 |
|---|
| March | 17 | 30 | 23.4 | 62 | 86 | 74.1 |
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| April | 14 | 29 | 21.8 | 58 | 84 | 71.2 |
|---|
| May | 10 | 27 | 18.7 | 51 | 81 | 65.7 |
|---|
| June | 7 | 25 | 15.8 | 44 | 76 | 60.4 |
|---|
| July | 6 | 24 | 15.5 | 44 | 76 | 59.8 |
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| August | 9 | 28 | 18.7 | 49 | 83 | 65.7 |
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| September | 14 | 32 | 22.6 | 56 | 89 | 72.7 |
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| October | 17 | 34 | 25.2 | 62 | 93 | 77.3 |
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| November | 18 | 33 | 25.3 | 64 | 91 | 77.6 |
|---|
| December | 18 | 32 | 25.2 | 65 | 90 | 77.4 |
|---|
| Year | 13.8 | 29.6 | 21.7 | 56.9 | 85.4 | 71 |
|---|
In Grootfontein,
precipitation amounts to 525 millimeters (20.7 inches) per year: so, it is at an intermediate level. It ranges from 0 mm (0 in) in the driest months (May, July) to 120 mm (4.7 in) in the wettest one (January). Here is the average precipitation.
Grootfontein - Average precipitation| Month | Millimeters | Inches | Days |
|---|
| January | 120 | 4.7 | 7 |
|---|
| February | 95 | 3.7 | 7 |
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| March | 70 | 2.8 | 5 |
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| April | 30 | 1.2 | 2 |
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| May | 0 | 0 | 0 |
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| June | 15 | 0.6 | 0 |
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| July | 0 | 0 | 0 |
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| August | 6 | 0.2 | 0 |
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| September | 25 | 1 | 1 |
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| October | 25 | 1 | 3 |
|---|
| November | 60 | 2.4 | 5 |
|---|
| December | 80 | 3.1 | 7 |
|---|
| Year | 525 | 20.7 | 38 |
|---|
Grootfontein - Weather by month
Based on the period 1991-2020
In
January, the weather in Grootfontein is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 24.5 °C (76 °F), with a minimum of 17.9 °C (64.3 °F) and a maximum of 31 °C (87.8 °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 35 °C (95.5 °F). However, it reached 40.1 °C (104.2 °F) in January 2016.
Precipitation amounts to 120 mm (4.7 in), distributed over 7 days.
The day lasts on average 13 hours and 10 minutes.
The average humidity is 57%.
The average wind speed is 8 kph (5 mph).
In
February, the weather in Grootfontein is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 24.4 °C (76 °F), with a minimum of 17.8 °C (64 °F) and a maximum of 31 °C (87.8 °F).
On the coldest nights of the month, the temperature usually drops to around 14.5 °C (58 °F).
On the warmest days of the month, the temperature usually reaches around 34 °C (93.5 °F). However, it reached 37.5 °C (99.5 °F) in February 1998.
Precipitation amounts to 95 mm (3.7 in), distributed over 7 days.
The day lasts on average 12 hours and 40 minutes.
The average humidity is 58%.
The average wind speed is 7 kph (4 mph).
In
March, the weather in Grootfontein is usually warm to hot. The average temperature is of 23.4 °C (74 °F), with a minimum of 16.9 °C (62.4 °F) and a maximum of 29.9 °C (85.8 °F).
On the coldest nights, the temperature usually drops to around 12.5 °C (54.5 °F).
On the warmest days, the temperature usually reaches around 33 °C (91.5 °F). However, it reached 37 °C (98.6 °F) in March 1998.
Precipitation amounts to 70 mm (2.8 in), distributed over 5 days.
The day lasts on average 12 hours and 10 minutes.
The average humidity is 59%.
The average wind speed is 6 kph (4 mph).
In
April, the weather in Grootfontein is usually warm. However, there are remarkable differences between night and day. The average temperature is of 21.8 °C (71 °F), with a minimum of 14.4 °C (58 °F) and a maximum of 29.1 °C (84.5 °F).
On the coldest nights, the temperature usually drops to around 10 °C (50 °F).
On the warmest days, the temperature usually reaches around 31.5 °C (88.5 °F). However, it reached 34.8 °C (94.6 °F) in April 2003.
Precipitation amounts to 30 mm (1.2 in), distributed over 2 days.
The day lasts on average 11 hours and 35 minutes.
The average humidity is 47%.
The average wind speed is 6 kph (4 mph).
In
May, the weather in Grootfontein is usually warm. However, there are remarkable differences between night and day. The average temperature is of 18.7 °C (66 °F), with a minimum of 10.3 °C (50.6 °F) and a maximum of 27.1 °C (80.8 °F).
On the coldest nights, the temperature usually drops to around 5 °C (40.5 °F).
On the warmest days, the temperature usually reaches around 30 °C (86 °F). However, it reached 32.5 °C (90.5 °F) in May 2016.
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.
The average humidity is 40%.
The average wind speed is 7 kph (4 mph).
In
June, the weather in Grootfontein is usually very mild. However, there are remarkable differences between night and day. The average temperature is of 15.8 °C (60 °F), with a minimum of 6.9 °C (44.5 °F) and a maximum of 24.6 °C (76.3 °F).
On the coldest nights, the temperature usually drops to around 1 °C (34 °F).
On the warmest days, the temperature usually reaches around 28 °C (82 °F). However, it reached 30.4 °C (86.7 °F) in June 2013.
Precipitation amounts to 15 mm (0.6 in), distributed over 0 days.
The day lasts on average 11 hours and 0 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
The average humidity is 37%.
The average wind speed is 7 kph (4 mph).
In
July, the coldest month of the year, the weather in Grootfontein 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 6.5 °C (43.6 °F) and a maximum of 24.5 °C (76 °F).
On the coldest nights of the month, the temperature usually drops to around 0.5 °C (33 °F).
On the warmest days of the month, the temperature usually reaches around 28 °C (82.5 °F). However, it reached 30.7 °C (87.3 °F) in July 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 5 minutes.
The average humidity is 36%.
The average wind speed is 7 kph (4 mph).
In
August, the weather in Grootfontein is usually warm. However, there are remarkable differences between night and day. The average temperature is of 18.7 °C (66 °F), with a minimum of 9.4 °C (48.9 °F) and a maximum of 28.1 °C (82.6 °F).
On the coldest nights of the month, the temperature usually drops to around 2 °C (36 °F).
On the warmest days of the month, the temperature usually reaches around 31.5 °C (89 °F). However, it reached 34.8 °C (94.6 °F) in August 2015.
Precipitation amounts to only 6 mm (0.2 in), distributed over 0 days.
The day lasts on average 11 hours and 30 minutes.
The average humidity is 27%. Hence, the air is normally dry.
The average wind speed is 7 kph (5 mph).
In
September, the weather in Grootfontein is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 22.6 °C (73 °F), with a minimum of 13.6 °C (56.4 °F) and a maximum of 31.7 °C (89.1 °F).
On the coldest nights, the temperature usually drops to around 6.5 °C (44 °F).
On the warmest days, the temperature usually reaches around 34.5 °C (94.5 °F). However, it reached 36.9 °C (98.4 °F) in September 2016.
Precipitation amounts to 25 mm (1 in), and all occurs in one day.
The day lasts on average 12 hours and 0 minutes.
The average humidity is 24%. Hence, the air is normally dry.
The average wind speed is 7 kph (4 mph).
In
October, the weather in Grootfontein is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 25.2 °C (77 °F), with a minimum of 16.6 °C (61.9 °F) and a maximum of 33.7 °C (92.6 °F).
On the coldest nights, the temperature usually drops to around 10.5 °C (51 °F).
On the warmest days, the temperature usually reaches around 37 °C (98.5 °F). However, it reached 40 °C (104 °F) in October 2012.
Precipitation amounts to 25 mm (1 in), distributed over 3 days.
The day lasts on average 12 hours and 35 minutes.
The average humidity is 28%. Hence, the air is normally dry.
The average wind speed is 8 kph (5 mph).
In
November, the hottest month of the year, the weather in Grootfontein 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 17.7 °C (63.9 °F) and a maximum of 33 °C (91.4 °F).
On the coldest nights, the temperature usually drops to around 12.5 °C (54 °F).
On the warmest days, the temperature usually reaches around 36.5 °C (97.5 °F). However, it reached 40.8 °C (105.4 °F) in November 2015.
Precipitation amounts to 60 mm (2.4 in), distributed over 5 days.
The day lasts on average 13 hours and 5 minutes.
The average humidity is 39%.
The average wind speed is 7 kph (4 mph).
In
December, the hottest month of the year, the weather in Grootfontein is usually warm to hot. However, there are remarkable differences between night and day. The average temperature is of 25.2 °C (77 °F), with a minimum of 18.4 °C (65.1 °F) and a maximum of 32.1 °C (89.8 °F).
On the coldest nights of the month, the temperature usually drops to around 14 °C (57.5 °F).
On the warmest days of the month, the temperature usually reaches around 36 °C (97 °F). However, it reached 40.4 °C (104.7 °F) in December 2015.
Precipitation amounts to 80 mm (3.1 in), distributed over 7 days.
The day lasts on average 13 hours and 20 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
The average humidity is 49%.
The average wind speed is 7 kph (5 mph).