Climate of Johannesburg
Johannesburg has a moderate climate. There is a lot of rainfall in the summer, and in the winter it is quite dry again. The average annual temperature for Johannesburg is 24° degrees and there is about 387 mm of rain in a year. It is dry for 214 days a year with an average humidity of 53% and an UV-index of 5.
Climate averages for the whole year
- Day: the average daily temperature during the day is between 17°C and 27°C
- Night:the average nighttime temperature is between 5°C and 16°C
- Rain: it rains 126 days and there is a total of approximately 387 mm rainfall
- Sun hours: throughout the year there are 3491 sun hours
Maximum temperature: | between 17°C and 27°C |
Warmest month: | 27°C in January |
Coldest month: | 17°C in July |
Night temperature: | between 5°C and 16°C |
Dry days: | 239 days |
Days with rain: | 126 days |
Days with snow: | 0 days |
Total rain sum: | 387 mm |
Hours of sunshine: | 3491 hours |
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Temperature graph
This graph shows the average maximum temperature (red) and minimum temperature (blue) for Johannesburg.
Precipitation graph
This graph shows the average amount of rainfall per month for Johannesburg.
Climate table of Johannesburg
In this climate table you can see at a glance what the average weather per month is for Johannesburg. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Johannesburg might be like in a given month.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Day temp. (°C) | 27 | 27 | 26 | 22 | 21 | 18 | 17 | 21 | 25 | 27 | 27 | 27 |
Night temp. (°C) | 16 | 15 | 14 | 11 | 9 | 5 | 5 | 8 | 11 | 14 | 15 | 16 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (mm) | 85 | 54 | 42 | 18 | 6 | 3 | 1 | 2 | 7 | 46 | 53 | 70 |
Days with rain | 21 | 18 | 17 | 10 | 4 | 2 | 2 | 2 | 4 | 10 | 16 | 20 |
Dry days | 10 | 10 | 14 | 20 | 27 | 28 | 29 | 29 | 26 | 21 | 14 | 11 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Sun hours per day | 12 | 12 | 9 | 8 | 7 | 7 | 7 | 7 | 10 | 12 | 12 | 12 |
Wind force (Bft) | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
UV-index | 6 | 5 | 5 | 5 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 6 |
Best time to visit Johannesburg
The best time to visit Johannesburg in South Africa is from January through June and August through December. In this period you have a warm temperature and little precipitation. The highest average temperature in Johannesburg is 27°C in January and the lowest is 17°C in July.
Climate of Johannesburg by month
What is the average climate in a given month for Johannesburg? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.
Johannesburg weather experiences
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