What’s the climate like in Johannesburg?
The current climate of Johannesburg features average monthly temperatures ranging from highs of 28°C during the day to lows of 19°C. 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.
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.
On average, Johannesburg receives 859 mm of precipitation each year. For comparison, London gets 701 mm of precipitation annually.
Curious about the climate in other parts of South Africa? Check out the weather and climate in places like Cape Town, Krugerpark, Stellenbosch, or have a look at 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 good 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.
Climate Table of Johannesburg
The climate table of Johannesburg shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation 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.
- Average yearly temperature: 25°C
- Highest temperature: 28°C in January
- Lowest temperature: 19°C in June and July
- Precipitation: 859 mm per year, averaging 72 mm per month
- Driest months: 3,5 mm in August, 4,0 mm in July and 5,6 mm in June
- Wettest months: 189 mm in February, 140 mm in December and 120 mm in January
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Table of Contents
Average Temperature per Month in Johannesburg
This graph shows the average maximum temperatures per month in Johannesburg, South Africa. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Johannesburg
This graph shows how much precipitation Johannesburg, South Africa, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in Johannesburg
This graph 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.
Yearly Temperature in Johannesburg
This graph shows the average yearly temperature in Johannesburg, South Africa. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Johannesburg
This chart shows the total yearly precipitation in Johannesburg, South Africa, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in Johannesburg
The weather in Johannesburg is rated an average of 0 out of 5 stars by 12 visitors. Have you been to Johannesburg? Share your weather experience to help other visitors.
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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.
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