Cape Town weather in September
Cape Town in September averages 14°C (58°F), 47 mm of rain and 7.7 hours of sun a day.
Of the twelve months in Cape Town, September is the fourth coldest, the fifth wettest and the fifth dullest.
- Average temp
- 14°C (58°F)
9–20°C · 49–67°F
- Rainfall
- 47 mm
Not much rain
- Sunshine
- 7.7 h
hours per day
What is Cape Town like in September?
Daytime
Days are mild.
Rain
Rain is usually light.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Cape Town in September?
A warm mid-layer
Nights drop to around 9°C (49°F).
September compared with August and October
September in Cape Town is 1.4°C warmer than August and 28 mm drier than it, which averages 13°C (55°F).
September in Cape Town is 2.5°C cooler than October and 16 mm wetter than it, which averages 17°C (62°F).
Daylight in Cape Town in September
On 15 September the sun is up for 11 hours 53 minutes in Cape Town, rising about 06:45 and setting about 18:38 local time.
September ends 59 minutes longer than it begins, so the last week of the month is a different length of day from the first.
That is 2 hours 31 minutes short of December, the longest-lit month here.
Where to stay in Cape Town
Dates are a starting point for September.
Travel guides for Cape Town
What to read before you book.
Cape Town weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 22°C / 71°F | 10 mm |
| February | 22°C / 72°F | 11 mm |
| March | 21°C / 69°F | 13 mm |
| April | 18°C / 64°F | 42 mm |
| May | 15°C / 60°F | 65 mm |
| June | 13°C / 56°F | 97 mm |
| July | 13°C / 55°F | 89 mm |
| August | 13°C / 55°F | 76 mm |
| September | 14°C / 58°F | 47 mm |
| October | 17°C / 62°F | 32 mm |
| November | 19°C / 65°F | 27 mm |
| December | 21°C / 69°F | 13 mm |
Check another month
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FAQs about Cape Town in September
September climate averages for Cape Town, 1991–2020.
Cape Town averages 14°C (58°F) in September, ranging from about 9°C (49°F) at night to 20°C (67°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. September sees only about 47 mm, so rain is unlikely to affect your plans.
No. September averages 14°C (58°F) against 17°C (62°F) in October — 2.5°C cooler.
September is 1.4°C warmer than August, and 28 mm drier.
It is outside the easiest window. The most comfortable stretch here is November to April; September sits outside it, which usually means more heat, more rain, or both — worth it if you would rather have the place to yourself.
About 7.7 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 11 hours 53 minutes of daylight in mid-September, against 14 hours 24 minutes in December and 9 hours 54 minutes in June.
On 15 September, sunrise is about 06:45 and sunset about 18:38 local time. Both shift across the month — the month ends 59 minutes longer than it starts.
