Johannesburg weather in July
In July, Johannesburg has an average high of 16 °C62 °F and an average low of 0 °C33 °F, with about 3 mm0.1 in of precipitation. July is the coldest month of the year and the driest.
How July compares with other months
Compared with June, July is about the same temperature. Compared with August, July is 3.2 °C5.7 °F cooler on average. Daylight lasts about 10.6 hours around the middle of the month. Average relative humidity is 49% and the average cloud amount 22%.
Is July a good time to visit Johannesburg?
July is not among the most comfortable months by our comfort score: it is cool (average high 16 °C62 °F) and nights are cold (average low 0 °C33 °F). The most comfortable months in Johannesburg are February–May and August–November.
What to wear in July
For Johannesburg in July, pack long sleeves, a sweater and a medium jacket and an extra layer for the cooler mornings and evenings.
July in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Johannesburg | 1662 | 033 | 30.1 |
| Alberton | 1864 | 134 | 30.1 |
| Roodepoort | 1762 | 133 | 30.1 |
| Soweto | 1763 | 133 | 30.1 |
| Thembisa | 1864 | 235 | 30.1 |
| Krugersdorp | 1762 | 133 | 30.1 |
| Etwatwa | 1864 | 134 | 30.1 |
| Nigel | 1864 | 134 | 40.1 |
| Pretoria | 2068 | 338 | 20.1 |
Nearby places that are more than 1 °C1.8 °F warmer in July: Thembisa, Etwatwa and Pretoria.
Other months in Johannesburg
- January27 °C80 °F / 14 °C56 °F
- February27 °C80 °F / 13 °C56 °F
- March25 °C77 °F / 12 °C53 °F
- April22 °C72 °F / 8 °C47 °F
- May19 °C67 °F / 4 °C40 °F
- June16 °C61 °F / 1 °C34 °F
- July16 °C62 °F / 0 °C33 °F
- August20 °C68 °F / 3 °C38 °F
- September25 °C77 °F / 7 °C45 °F
- October27 °C80 °F / 10 °C50 °F
- November27 °C80 °F / 12 °C53 °F
- December27 °C80 °F / 13 °C56 °F
Frequently asked questions
How warm is Johannesburg in July?
In July the average high in Johannesburg is 16 °C (62 °F) and the average low is 0 °C (33 °F).
Does it rain a lot in Johannesburg in July?
On average about 3 mm (0.1 in) of precipitation falls in July; it ranks 12th of the 12 months.
Is July the warmest month in Johannesburg?
No. The warmest month in Johannesburg is November, with an average high of 27 °C (80 °F). The coldest month is July, with an average low of 0 °C (33 °F).
How long is the day in Johannesburg in July?
In the middle of July the day in Johannesburg lasts about 10.6 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Johannesburg in July?
The average relative humidity in July is about 49%. This is a long-term average for the whole day.
How cloudy is Johannesburg in July?
On average about 22% of the sky is covered by cloud in July. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 1,538 m, while Johannesburg lies at about 1,767 m. Temperatures on this page were therefore adjusted by −1.5 °C2.7 °F using the standard lapse rate of 6.5 °C per 1,000 m.