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United StatesThe weather in July in Johannesburg
It's hot in July in Johannesburg with an average temperature of 40°C. Temperatures this month range from a low of 38°C to a high of 42°C. At night, you can expect temperatures between 20°C and 25°C.
July isn’t a good month to be in Johannesburg. The average temperature of 40°C this month is uncomfortably hot for a comfortable stay.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in July for Johannesburg, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 47°C in 2021, Johannesburg reached the highest temperature in July over the past 10 years. The lowest daytime temperature in this month was 28°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 12°C to a highest value of 29°C.
Rainfall amount
According to weather history, there is only 1,7 mm of precipitation in July. The wind speed is around 5 Bft, mostly coming from the Southwest.
Daily weather in July for Johannesburg
Click on any day in July 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.
July weather comparison
| Johannesburg | New York | |
|---|---|---|
| Average temperature | 40°C | 31°C |
| Max. temperature | 42°C | 33°C |
| Min. temperature | 20°C | -5°C |
| Total precipitation | 1,7 mm | 160 mm |
| Rainy days | 1 day | 18 days |
Start of July
The month of July starts in Johannesburg with hot temps, averaging around 39°C during the day and nights around 22°C.
Mid July
By mid-July, daytime temps rise to around 40°C, with nights around 23°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of July
By the end of July, the average daytime temperature in Johannesburg is around 41°C, while nighttime temps are about 24°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
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Temperature charts
These charts show the average temperatures in July in Johannesburg, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in July in Johannesburg
Temperature in July in Johannesburg over the years
Precipitation charts
These charts show the average amount of precipitation in July in Johannesburg, California. 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.
Daily Precipitation in July in Johannesburg
Total precipitation in July in Johannesburg over the years
Daily UV index in July in Johannesburg
This chart shows the average daily UV index in July 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.
Weather experiences in July 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.