Climate - Alexander Bay (South Africa)
Average weather, temperature, rainfall, sunshine hours
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Climate chart - Alexander Bay
The climate of Alexander Bay is subtropical desert, with mild temperatures but very rare rainfall.
The village is located in the far northwest of South Africa, on the coast. Beyond the Orange River, which marks the border with Namibia, lies the town of Oranjemund.
A cold current flows on the sea, so the climate is cool and arid.
However, a hot wind can blow from the desert all year round: in winter it blows more often, but in summer it brings higher temperatures.
Alexander Bay - Climate data
In Alexander Bay, the average temperature of the coldest month (August) is of 15.4 °C (59.7 °F), that of the warmest month (February) is of 20.5 °C (69.0 °F). Here are the average temperatures.Alexander Bay - Average temperatures (1997-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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| January | 15.9 | 24.9 | 20.4 | 61 | 77 | 68.8 |
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| February | 15.9 | 25.1 | 20.5 | 61 | 77 | 69 |
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| March | 14.6 | 25.5 | 20.1 | 58 | 78 | 68.1 |
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| April | 13 | 25.3 | 19.1 | 55 | 77 | 66.5 |
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| May | 11.2 | 24.1 | 17.6 | 52 | 75 | 63.7 |
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| June | 9.6 | 23.2 | 16.4 | 49 | 74 | 61.4 |
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| July | 9.2 | 23.1 | 16.1 | 49 | 74 | 61.1 |
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| August | 9 | 21.8 | 15.4 | 48 | 71 | 59.7 |
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| September | 10.1 | 22.3 | 16.2 | 50 | 72 | 61.1 |
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| October | 11.9 | 22.9 | 17.4 | 53 | 73 | 63.3 |
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| November | 13.5 | 23.5 | 18.5 | 56 | 74 | 65.3 |
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| December | 15.3 | 24.2 | 19.8 | 60 | 76 | 67.6 |
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| Year | 12.4 | 23.8 | 18.1 | 54.3 | 74.9 | 64.5 |
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In Alexander Bay, precipitation amounts to 35 millimeters (1.4 inches) per year: it is therefore at a desert level. It ranges from 0 mm (0 in) in the driest months (October, November) to 8 mm (0.3 in) in the wettest one (June). Here is the average precipitation.Alexander Bay - Average precipitation| Month | Millimeters | Inches | Days |
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| January | 1 | 0 | 0 |
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| February | 2 | 0.1 | 0 |
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| March | 2 | 0.1 | 1 |
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| April | 4 | 0.2 | 1 |
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| May | 4 | 0.2 | 1 |
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| June | 8 | 0.3 | 2 |
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| July | 5 | 0.2 | 2 |
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| August | 6 | 0.2 | 2 |
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| September | 3 | 0.1 | 1 |
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| October | 0 | 0 | 1 |
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| November | 0 | 0 | 0 |
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| December | 2 | 0.1 | 0 |
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| Year | 35 | 1.5 | 11 |
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At Alexander Bay, the sea temperature ranges from 14 °C (57 °F) in July, August to 18.5 °C (65 °F) in January. Here are the average sea temperatures.Alexander Bay - Sea temperature| Month | Celsius (°C) | Fahrenheit (°F) |
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January | 18.5 | 65 | February | 18 | 65 | March | 17.5 | 63 | April | 16.5 | 62 | May | 15.5 | 60 | June | 14.5 | 58 | July | 14 | 58 | August | 14 | 57 | September | 14.5 | 58 | October | 15.5 | 60 | November | 16.5 | 62 | December | 18 | 64 | Year | 16.1 | 60.9 |
In Alexander Bay, there are on average around 3310 sunshine hours per year. Here are the average hours of sunshine per day.
Alexander Bay - Sunshine hours| Month | Average | Total |
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January | 10.5 | 325 | February | 10 | 275 | March | 9 | 280 | April | 8.5 | 255 | May | 8.5 | 260 | June | 8 | 235 | July | 8 | 245 | August | 8.5 | 255 | September | 8.5 | 260 | October | 9.5 | 290 | November | 10.5 | 310 | December | 10.5 | 320 | Year | 9.1 | 3310 |
Alexander Bay - Weather by month
Based on the period 1997-2020
In January, the weather in Alexander Bay is usually warm. The average temperature is of 20.4 °C (69 °F), with a minimum of 15.9 °C (60.7 °F) and a maximum of 24.9 °C (76.9 °F).
On the coldest nights of the month, the temperature usually drops to around 12 °C (54 °F). However, it dropped to 9.5 °C (49.1 °F) in January 1999.
On the warmest days of the month, the temperature usually reaches around 29.5 °C (85.5 °F). However, it reached 38.7 °C (101.7 °F) in January 2000.
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
The day lasts on average 13 hours and 40 minutes.
There are on average 10.5 hours of sunshine per day. So, the sun shines 77% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 18 kph (11 mph).
The average sea temperature is of 18.5 °C (65 °F). Therefore, the sea is very cool for swimming.
In February, the warmest month of the year, the weather in Alexander Bay is usually warm. The average temperature is of 20.5 °C (69 °F), with a minimum of 15.9 °C (60.7 °F) and a maximum of 25.1 °C (77.3 °F).
On the coldest nights of the month, the temperature usually drops to around 12.5 °C (54 °F). However, it dropped to 10 °C (50 °F) in February 1999.
On the warmest days of the month, the temperature usually reaches around 30 °C (86.5 °F). However, it reached 38.1 °C (100.6 °F) in February 2002.
Precipitation amounts to only 2 mm (0.1 in), distributed over 0 days.
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 76%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 18 °C (65 °F). Therefore, the sea is cold for swimming.
In March, the weather in Alexander Bay is usually warm. The average temperature is of 20.1 °C (68 °F), with a minimum of 14.6 °C (58.3 °F) and a maximum of 25.5 °C (78 °F).
On the coldest nights, the temperature usually drops to around 10 °C (50 °F). However, it dropped to 8 °C (46.4 °F) in March 2006.
On the warmest days, the temperature usually reaches around 36 °C (96.5 °F). However, it reached 43.4 °C (110.1 °F) in March 2017.
Precipitation amounts to only 2 mm (0.1 in), and all occurs in one day.
The day lasts on average 12 hours and 10 minutes.
There are on average 9 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 17.5 °C (63.5 °F). Therefore, the sea is cold for swimming.
In April, the weather in Alexander Bay is usually warm. The average temperature is of 19.1 °C (66 °F), with a minimum of 13 °C (55.4 °F) and a maximum of 25.3 °C (77.5 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 8 °C (46.5 °F). However, it dropped to 6.9 °C (44.4 °F) in April 2008.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 36 °C (97 °F). However, it reached 41.3 °C (106.3 °F) in April 2006.
Precipitation amounts to only 4 mm (0.2 in), and all occurs in one day.
The day lasts on average 11 hours and 25 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 12 kph (8 mph).
The average sea temperature is of 16.5 °C (61.5 °F). Therefore, the sea is cold for swimming.
In May, the weather in Alexander Bay is usually very mild. The average temperature is of 17.6 °C (64 °F), with a minimum of 11.2 °C (52.1 °F) and a maximum of 24.1 °C (75.3 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 6.5 °C (43.5 °F).
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 35 °C (95 °F). However, it reached 38.5 °C (101.3 °F) in May 2007.
Precipitation amounts to only 4 mm (0.2 in), and all occurs in one day.
The day lasts on average 10 hours and 40 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 15.5 °C (60 °F). Therefore, the sea is cold for swimming.
In June, the weather in Alexander Bay is usually very mild. However, there are remarkable differences between night and day. The average temperature is of 16.4 °C (61 °F), with a minimum of 9.6 °C (49.2 °F) and a maximum of 23.2 °C (73.7 °F).
On the coldest nights, the temperature usually drops to around 5 °C (41 °F). However, it dropped to 2.8 °C (37 °F) in June 2003.
On the warmest days, the temperature usually reaches around 32.5 °C (90.5 °F). However, it reached 35.1 °C (95.2 °F) in June 2017.
Precipitation amounts to only 8 mm (0.3 in), distributed over 2 days.
The day lasts on average 10 hours and 20 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.
There are on average 8 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 68%.
The average wind speed is 11 kph (7 mph).
The average sea temperature is of 14.5 °C (58.5 °F). Therefore, the sea is very cold for swimming.
In July, the weather in Alexander Bay is usually very mild. However, there are remarkable differences between night and day. The average temperature is of 16.1 °C (61 °F), with a minimum of 9.2 °C (48.6 °F) and a maximum of 23.1 °C (73.5 °F).
On the coldest nights of the month, the temperature usually drops to around 4.5 °C (39.5 °F). However, it dropped to 1.4 °C (34.5 °F) in July 1998.
On the warmest days of the month, the temperature usually reaches around 33 °C (91.5 °F). However, it reached 35.9 °C (96.6 °F) in July 2005.
Precipitation amounts to only 5 mm (0.2 in), distributed over 2 days.
The day lasts on average 10 hours and 30 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 75% of the time.
The average humidity is 66%.
The average wind speed is 12 kph (7 mph).
The average sea temperature is of 14 °C (57.5 °F). Therefore, the sea is very cold for swimming.
In August, the coldest month of the year, the weather in Alexander Bay is usually very mild. The average temperature is of 15.4 °C (60 °F), with a minimum of 9 °C (48.2 °F) and a maximum of 21.8 °C (71.2 °F).
On the coldest nights of the month, the temperature usually drops to around 4.5 °C (40 °F).
On the warmest days of the month, the temperature usually reaches around 33.5 °C (92 °F). However, it reached 37.3 °C (99.1 °F) in August 2019.
Precipitation amounts to only 6 mm (0.2 in), distributed over 2 days.
The day lasts on average 11 hours and 10 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 69%.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 14 °C (57.5 °F). Therefore, the sea is very cold for swimming.
In September, the weather in Alexander Bay is usually very mild. The average temperature is of 16.2 °C (61 °F), with a minimum of 10.1 °C (50.1 °F) and a maximum of 22.3 °C (72.1 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 5.5 °C (42 °F).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 35 °C (95 °F). However, it reached 39.4 °C (102.9 °F) in September 2019.
Precipitation amounts to only 3 mm (0.1 in), and all occurs in one day.
The day lasts on average 12 hours and 0 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 14.5 °C (58 °F). Therefore, the sea is very cold for swimming.
In October, the weather in Alexander Bay is usually very mild. The average temperature is of 17.4 °C (63 °F), with a minimum of 11.9 °C (53.3 °F) and a maximum of 22.9 °C (73.2 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 7.5 °C (45.5 °F). However, it dropped to 5.2 °C (41.4 °F) in October 2005.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 34.5 °C (94 °F). However, it reached 40.4 °C (104.7 °F) in October 2009.
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 50 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 72% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 15.5 °C (59.5 °F). Therefore, the sea is cold for swimming.
In November, the weather in Alexander Bay is usually warm. The average temperature is of 18.5 °C (65 °F), with a minimum of 13.5 °C (56.2 °F) and a maximum of 23.5 °C (74.3 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 9.5 °C (49 °F).
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 31.5 °C (88.5 °F). However, it reached 40.8 °C (105.4 °F) in November 2006.
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 35 minutes.
There are on average 10.5 hours of sunshine per day. So, the sun shines 76% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 18 kph (11 mph).
The average sea temperature is of 16.5 °C (61.5 °F). Therefore, the sea is cold for swimming.
In December, the weather in Alexander Bay is usually warm. The average temperature is of 19.8 °C (68 °F), with a minimum of 15.3 °C (59.5 °F) and a maximum of 24.2 °C (75.6 °F).
On the coldest nights of the month, the temperature usually drops to around 11.5 °C (53 °F). However, it dropped to 10 °C (50 °F) in December 2005.
On the warmest days of the month, the temperature usually reaches around 28.5 °C (83 °F). However, it reached 36.1 °C (97 °F) in December 2006.
Precipitation amounts to only 2 mm (0.1 in), distributed over 0 days.
The day lasts on average 13 hours and 55 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.
There are on average 10.5 hours of sunshine per day. So, the sun shines 74% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 18 °C (64 °F). Therefore, the sea is cold for swimming.
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