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When is the best time to visit Johannesburg?
In general the best time to visit Johannesburg is probably May, June, July, August, when the weather is usually great. The hottest months are January, February, December, while the coldest months are May, June, July.
Depending on the activities you want to experience, you may choose different months to visit:
- The best time for a sunbathing holiday is January, February, December. Average maximum temperatures are up to +25°C in December and it has 3 sunny days on average.
- In general, it’s pleasant to walk and do outdoor activities during January - December.
- If you want to avoid wet weather, then your choice is January, February, March with the lowest chance of rain.
Average weather in Johannesburg in different months
This is the average weather in Johannesburg for each month based on historic data:
In May, June, July, August the weather is great. There are an average of 24 sunny days in July and the temperature ranges from +3°C to +17°C.
January, February, March, April, September, October, November, December usually has good weather. Average maximum temperature reaches +25°C during January.
Climate in Johannesburg
Here is the detailed breakdown of the climate in Johannesburg for each month:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum Temperature | |||||||||||
| +37°C | +34°C | +32°C | +29°C | +27°C | +25°C | +25°C | +28°C | +32°C | +34°C | +35°C | +35°C |
| Average Maximum Temperature | |||||||||||
| +25°C | +25°C | +24°C | +21°C | +19°C | +17°C | +17°C | +20°C | +23°C | +24°C | +24°C | +25°C |
| Minimum Temperature | |||||||||||
| +6°C | +9°C | +6°C | 0°C | -3°C | -5°C | -5°C | -5°C | -1°C | +3°C | +4°C | +5°C |
| Avg. water temperature | |||||||||||
| - | - | - | - | - | - | - | - | - | - | - | - |
| Humidity, % | |||||||||||
| 72 | 72 | 71 | 68 | 61 | 59 | 55 | 51 | 49 | 58 | 65 | 70 |
| Rain, mm | |||||||||||
| 142 | 119 | 90 | 51 | 18 | 10 | 5 | 12 | 28 | 82 | 111 | 148 |
| Snow, mm | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Average wind speed, m/s | |||||||||||
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 1 |
| Sunny Days | |||||||||||
| 4 | 5 | 8 | 11 | 19 | 22 | 24 | 22 | 17 | 9 | 5 | 3 |
| Cloud Days | |||||||||||
| 3 | 3 | 4 | 6 | 6 | 5 | 4 | 5 | 5 | 5 | 5 | 4 |
| Rainy Days | |||||||||||
| 24 | 20 | 19 | 13 | 5 | 3 | 2 | 4 | 7 | 17 | 20 | 24 |
| Snowy Days | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Average Temperature
Here are the average maximum and minimum temperatures in Johannesburg during the whole year:
The hottest month in Johannesburg is December with average maximum temperature going up to +25°C. The coldest month is June with the lowest temperatures of +3°C.
Humidity
The temperature feels different depending on humidity. Here is how humidity in Johannesburg looks throughout the year, in %:
The most humid month in Johannesburg is February with average humidity going up to 72%. The least humid month is September with an average humidity of 49%.
Rain
Amount of rainfall in mm. in Johannesburg during the whole year based on historical data:
The sunniest and driest month is July with approximately 24 sunny days and a total precipitation of around 5 mm. The rainiest and wettest month is December with approximately 24 rainy days and 148 mm of total precipitation.
FAQ
Frequently asked questions about the weather in Johannesburg:
What is the hottest month in Johannesburg?
The hottest month in Johannesburg is December with average maximum temperature of +25°C.
What is the coldest month in Johannesburg?
The coldest month in Johannesburg is June with minimum temperatures of +3°C.
Is Johannesburg worth visiting in winter?
If you are planning to visit Johannesburg in winter you can expect pretty good weather. The best month is December with +25°C and 3 sunny days.
When does it rain the least in Johannesburg?
if you're looking to visit Johannesburg when it rains the least, you should plan your trip for December, January, February. During this time, rainfall is rare with the driest month being July with only 5 mm of rain.
Other cities in South Africa
Check out the weather for other cities in South Africa.
Monthly weather in Johannesburg
Source of the data
For this page, we’ve looked at the typical weather in Johannesburg, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.