Johannesburg · September
Run in the morning.
Comfortable average high of 77°F, dipping to 50°F at night. Comfortable conditions all day, but morning consistently delivers the best combination of cool air and clear skies.
Avg high / low
77° / 50°F
Humidity
38%
Rain days
5/mo
Wind
13 mph
What September feels like in Johannesburg
Sunrise
06:04
Mid-month average
Sunset
18:01
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
Midday
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in Johannesburg in September
The kit for September in Johannesburg: a long-sleeve or light jacket for the first mile.
September vs the surrounding months
vs August
+7° avg high
+2 rain days
Johannesburg in August →
September
77°F avg high
5 rain days
Best: morning
vs October
-2° avg high
-6 rain days
Johannesburg in October →
Frequently Asked Questions
What is the best time of day to run in Johannesburg in September?+
Morning. Comfortable conditions all day, but morning consistently delivers the best combination of cool air and clear skies.
What's the average temperature in Johannesburg in September?+
Average high 77°F, average low 50°F.
How does September compare to surrounding months in Johannesburg?+
Compared to August (avg high 69°F), September is warmer. Compared to October (avg high 79°F), September is cooler.
Does it rain often in Johannesburg in September?+
Expect about 5 measurable rain days in September, on average.