Normal weather for Johannesburg in August
It's hot in August in Johannesburg with an average temperature of 39°C. Temperatures this month range from a low of 38°C to a high of 41°C. At night, you can expect temperatures between 20°C and 24°C.
In August, there is an average of 10 mm of precipitation, spread over 2 days. The wind speed is around 5 Bft, mostly coming from the Southwest.
Johannesburg in August |
New York | ||
|---|---|---|---|
 Average Temperature |
39°C | 30°C | |
 High Temp |
41°C | 31°C | |
| Low Temp |
38°C | 28°C | |
 Total Precipitation |
10 mm | 79 mm | |
| Rainy Days |
2 days | 13 days | |
Start of August
The month of August starts in Johannesburg with hot temps, averaging around 39°C during the day and nights around 22°C. No precipitation expected at the start of the month; it’ll be sunny. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Mid August
By mid-August, daytime temps rise to around 40°C, with nights around 22°C. Not much precipitation expected during this period. It’s mostly dry and sunny. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
End of August
By the end of August, the average daytime temperature in Johannesburg is around 39°C, while nighttime temps are about 21°C. No precipitation expected at the end of the month; it’ll be mostly sunny. Light clothing like shorts or a dress, and a hat and sunglasses are perfect.
Find affordable trips to Johannesburg 
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is August a good time to visit Johannesburg?
August isn’t a good month to be in Johannesburg. The average temperature of 39°C this month is uncomfortably hot for a comfortable stay.
Temperature records for Johannesburg in August
Check out the climate of Johannesburg for all months and discover the best travel time
July
Plan your next vacation
Don’t miss the best vacation deals for Johannesburg and see what our partners have for you.
Daily Temperature in August in Johannesburg
This chart shows the average daily high and low temperatures in August for Johannesburg, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in Johannesburg
The chart below shows the average daily precipitation in August for Johannesburg, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 2 days of precipitation in Johannesburg.
Daily UV Index in August in Johannesburg
This chart shows the average daily UV index in August in Johannesburg, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Johannesburg Over the Years
This chart shows the average temperature in August in Johannesburg, measured in degrees Celsius, over the past few years.
Total Precipitation in August in Johannesburg Over the Years
This chart shows the average precipitation in August in Johannesburg, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in August for Johannesburg
Click on any day in August to get detailed info about the usual weather on that day in Johannesburg. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Johannesburg
Have you been to Johannesburg in August?
Share your weather experience in August in Johannesburg.
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.
Or check out the climate of Johannesburg for all months at once
