South AfricaThe climate of Johannesburg
The current climate in Johannesburg features temperatures ranging from a high of 28°C to a low of 19°C throughout the year. The average yearly temperature is around 25°C. At night, temperatures in the colder months average around 5°C and in the warmer months around 16°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Johannesburg, South Africa.
Temperature records
The highest temperature recorded in Johannesburg in recent years was 38°C in January 2016. The lowest daytime temperature recorded was 6°C in October 2023.
Rainfall amount
On average, Johannesburg receives 859 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
Curious about the weather in other parts of South Africa? Check out the climate and weather for spots like Cape Town, Krugerpark, Stellenbosch, or explore other destinations in South Africa.
Best time to visit Johannesburg?
The best time to visit Johannesburg for sunny weather is January and March through November. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Johannesburg. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
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Climate Table of Johannesburg
The climate table of Johannesburg shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 28 | 27 | 26 | 24 | 22 | 19 | 19 | 22 | 26 | 27 | 27 | 27 |
| Temp. min (°C) | 17 | 16 | 15 | 12 | 9 | 6 | 5 | 8 | 11 | 13 | 15 | 16 |
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| Precipitation (mm) | 120 | 189 | 98 | 68 | 18 | 5,6 | 4,0 | 3,5 | 46 | 48 | 118 | 140 |
| UV Index | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 7 | 8 | 9 | 9 | 9 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
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Temperature charts
These charts display the average temperatures in Johannesburg, South Africa. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Johannesburg
Yearly Temperature in Johannesburg
Precipitation charts
These charts show the average amount of precipitation in Johannesburg, South Africa. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Johannesburg
Total Yearly Precipitation in Johannesburg
UV index chart
This chart shows the average UV index per month in Johannesburg, South Africa. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Johannesburg
Weather experiences in Johannesburg
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Average weather in Johannesburg by month
Click on a month below to see detailed weather info for Johannesburg. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.