Cape Town · September
Run in the morning.
Cool month: average high 65°F, low 52°F. Humidity averages 77% — the limiting factor on most runs. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
65° / 52°F
Humidity
77%
Rain days
12/mo
Wind
13 mph
What September feels like in Cape Town
Sunrise
06:44
Mid-month average
Sunset
18:38
Mid-month average
Time-of-day breakdown
Morning
Coolest, driest air of the day. The window before sunrise is the most reliable comfortable hour.
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 Cape Town in September
The kit for September in Cape Town: shorts and a short-sleeve are the standard kit.
September vs the surrounding months
vs August
+2° avg high
-2 rain days
Cape Town in August →
September
65°F avg high
12 rain days
Best: morning
vs October
-5° avg high
+3 rain days
Cape Town in October →
Frequently Asked Questions
What is the best time of day to run in Cape Town in September?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in Cape Town in September?+
Average high 65°F, average low 52°F.
How does September compare to surrounding months in Cape Town?+
Compared to August (avg high 62°F), September is warmer. Compared to October (avg high 70°F), September is cooler.
Does it rain often in Cape Town in September?+
Expect about 12 measurable rain days in September, on average.