Today in Johannesburg, South Africa

Partly cloudy skies. Low around 50F. Winds NNW at 5 to 10 mph.

Sunny skies. High 82F. Winds light and variable.

This weather data was last updated 2021-09-23 08:22:06.


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5 days on...

  • Tonight P Cloudy
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Johannesburg Weather

Johannesburg weather is considered sub-tropical highland climate. Most of the year the weather in the city of Johannesburg is considered to be pleasant, and that is why a lot of people want to visit and know exactly where to find it. The city of Johannesburg is located south of the equator which means that if you are visiting from the United States, Europe or any other place north of the equator, you will feel that the seasons are reversed. Johannesburg weather winter happens from June through August but the weather starts cooling in May and it does not start getting warm until October. The temperatures can in some cases drop below zero but usually they remain close to 4 Celsius or 40 Fahrenheit.

Summers In Johannesburg

As stated earlier Johannesburg weather is thought to be by people who live there and those who visit pleasant. The hottest months of the year are December, January and February with the hottest month being January. The average high temperature for the month of January is 25.6 Celsius or 78.1 Fahrenheit. At night the temperatures still get a bit chilly with an average low of 14.7 Celsius or 58.5 Fahrenheit. Johannesburg weather does not see extreme heat even in the middle of the summer as the hottest temperature ever recorded is 35 Celsius or 95 degrees Fahrenheit. January is also the wettest month and it does rain a lot. It rains an average of 15.9 days every year and that translates into 125 millimeters or 4.92 inches of rain.

Winters In Johannesburg

The winter in Johannesburg weather is the months of June, July and August with June being the coldest month. The average high during this time of the year is 16 degrees Celsius or 60.8 Fahrenheit. The average low temperature during the winter in Johannesburg weather is 4.1 Celsius and that is the same for June and July. The coldest temperature ever recorded in Johannesburg is negative 8 Celsius or 18 Fahrenheit. July is also the driest month in Johannesburg and it only averages one day of precipitation per year. That translates into 4 millimeters or just a little above a quarter of an inch of rain. The city does see snow from time to time but it is very rare. You are more likely to see light sleet.


One curious thing about Johannesburg weather is that the summer is not the time of the year when you will see the most sunshine. If you wanted to get the most sun for your money during your vacation you will be better off visiting in the months of July and August and maybe even September. Both July and August average 285.2 hours of sunshine every year while in September the average only drops to 282 hours. If you were to visit Johannesburg during the summer in the month of February you will see the least amount of sun with an average of 224 hours. Per year the city of Johannesburg will see an average of 3,128.3 hours of sunshine.

Effects Of The Weather

Because most of the rain will fall during the summer the rest of the year becomes very dry with almost no rain falling in the winter months. You would think that that would translate into a city that is not very green but the opposite is true. The city of Johannesburg and Johannesburg weather are actually very green. The latest count shows that there are over 10 million trees in Johannesburg alone which makes it the biggest forest in the world which was manmade. The city of Johannesburg does see some influence from winds coming from the south as well as those coming from the Indian Ocean so the winters can have cold snaps and the summers can get muggy when the weather is too hot.

Does Johannesburg See Any Extreme Weather?

Johannesburg weather can be described as very stable. You will not see many extremely hot days nor will the temperatures ever drop as much as they do in the Midwest of the United States, Canada or northern Europe. Johannesburg weather, however, has seen a few tornados. While they are not frequent, they do happen but most of the time they remain weak in power and rated at F0. The latest one which came close to the city happened in 1991 and it left no deaths nor injured. There have been others which could be described as close but they usually stay over 30 miles away from the city of Johannesburg.



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