HOTTEST (AVG)
in South Africa
#2 / 3
Johannesburg South, South Africa
The climate in Johannesburg South is mild year-round, with annual average temperatures spanning 17°C / 62°F during July up to 25°C / 77°F in October.
Rainfall averages about 59 mm / 2.3 inches per month, with the wettest conditions in December (132 mm / 5.2 inches) and the driest in July (3 mm / 0.12 inches).
Sun intensity varies throughout the year, with UV levels reaching 10 in January and falling to 5 in June; strong sun protection is essential during summer months.
Expect approximately 13.8 hours of daylight during December and around 10.5 hours in June.
Each season in Johannesburg South brings unique weather patterns, allowing visitors to choose the experience that suits them best.
Today's forecast
Plan your trip
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Climate at a glance
The big-picture stats that matter for planning your visit to Johannesburg South.
Typical range
High / low
Average highs up to 25.0°C and lows down to 2.6°C.
Rain pattern
Wettest month
December averages 132 mm.
UV
Typical peak band
Typical peak UV is Very High.
Daylight
Seasonal range
Roughly 11 hrs to 14 hrs.
Wind
Typical strength
Average around 11 km/h, peaking in September.
Humidity
Typical range
Generally 42 % to 71 %.
When should I go?
Our top-rated months for visiting Johannesburg South, based on long-term weather comfort and conditions
Typical weather by month
Compare all monthsTip: click on a card to see detailed daily weather averages for that month.
How Johannesburg South compares
See how it ranks against the rest of South Africa for key metrics.
COOLEST (AVG)
in South Africa
#1 / 3
WETTEST (TOTAL)
in South Africa
#2 / 3
WINDIEST (AVG)
in South Africa
#3 / 3
HIGHEST UV
in South Africa
#1 / 3
MOST HUMID
in South Africa
#3 / 3
Short term outlook
Visiting soon? Here's the next 7 days of weather for Johannesburg South, or see an hourly breakdown for the next 14 days.
Frequently asked questions
How does the weather in Johannesburg South feel over the year?
Across the year, daytime highs average about 22°C (72°F), with nights near 10°C (50°F). Overall it feels warm by day and cool after dark. Daylight is fairly typical, with enough time for sightseeing. Skies are often clear or only partly cloudy, so you’ll see a good amount of sunshine.
When is the best time to visit Johannesburg South for dry weather?
When is sun exposure strongest in Johannesburg South?
UV tends to peak in January, when UV levels frequently reach very high levels (around 10), so strong sun protection is essential, especially around midday.
Is Johannesburg South humid?
It can feel humid, especially in the warmer months, when humidity can climb to around 71%. Light, breathable fabrics help a lot on muggy days.
Is Johannesburg South a windy place?
Across the year, average winds sit around 11 km/h (7 mph), with gusts on windier days up to about 57 km/h (35 mph). Overall it is it can feel quite windy at times, particularly when weather systems move through.
How much daylight does Johannesburg South get?
On average, days offer about 12 hours of daylight. Daylight is fairly typical, with enough time for sightseeing.