Weather in Johannesburg in June 2025
- June is usually the coldest month of the year in Johannesburg;
Average weather
Average temperature in Johannesburg in June
Going from a maximum of +21°C during the day to a minimum of 0°C during the night, the temperature in June averages around +18°C.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +15°C to +15°C.
Is Johannesburg warm or cold in June?
Johannesburg is typically mild in June.
Maximum temperatures go down compared to the previous month from +19°C to +17°C. The minimum temperature also goes down from +6°C to +3°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
June is the coldest month in Johannesburg, here is the comparison with other months:
Climate in Johannesburg in June
| May | June | July | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +19°C | +17°C | +17°C | ||||
| Min. temperature | ||||||
| -3°C | -5°C | -5°C | ||||
| Max. temperature | ||||||
| +27°C | +25°C | +25°C | ||||
| Rainfall | ||||||
| 18 mm | 10 mm | 5 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 61% | 59% | 55% | ||||
| Air pressure | ||||||
| 1021 HPa | 1023 HPa | 1024 HPa | ||||
| Sunny days | ||||||
| 19 | 22 | 24 | ||||
| Cloudy days | ||||||
| 6 | 5 | 4 | ||||
| Rainy days | ||||||
| 5 | 3 | 2 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
June weather is still as great as in May. It’s getting colder in June. From +19°C in the day, the average maximum temperature lowers to +17°C. As June arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 18 mm to 10 mm. It feels drier, as humidity decreases from 61% to 59%. The average wind speed doesn’t change much during June, staying around 1 m/s. The good news is there are likely to be more sunny days in June, from 19 to 22.
July brings much the same weather, it remains great.
Wind
The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Johannesburg is gradually increasing during June, going from 1 m/s to 1 m/s over the course of the month.
Rain
How was the weather last June in Johannesburg?
Climate Change over Years
The climate in Johannesburg in June has not changed much over the last 43 years.
The average temperature was the lowest in 2000 (+20°C) and the highest in 2015 (+25°C). The driest year was 2015 with only 464 mm of rainfall, and the wettest year was 2022 with 1539 mm.
FAQ
Is June a good time to visit Johannesburg?
Can you sunbathe in Johannesburg in June?
Is Johannesburg rainy in June?
Is it sunny in Johannesburg in June?
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.