Temperature range
Typical highs and lows
High25.0°C
Low2.6°C
The broad yearly range between warm daytime highs and the coolest overnight lows.
South Africa 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.
Trip planning
Plan your trip
Find the best dates. Understand the conditions. Pack with confidence.
Climate overview
Climate at a glance
The big-picture stats that matter for planning your visit to Johannesburg South.
Rain pattern
Wettest point of the year
132 mm
December carries the highest typical rainfall load.
Sun exposure
Typical peak UV band
Very High (8.3)
A fast read on how strong midday sun typically gets across the year.
Daylight window
Seasonal daylight range
11 hrsto14 hrs
Useful for gauging how much sightseeing time you get in shorter versus longer seasons.
Wind profile
Typical breeze strength
11 km/h
September is typically the breeziest month.
Humidity
Typical moisture range
42 %to71 %
A quick signal for how dry, comfortable, or heavy the air tends to feel.
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.
HOTTEST (AVG)
in South Africa
#2 / 3
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.
Travel planning FAQ
Frequently asked questions
Quick answers to the weather questions you ask the most.
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.