Cape Town in September: weather, sea & travel advice
Cape Town in September is especially suited to city breaks and active holidays and hiking. Days are around 17 °C (cool), and the sea is about 15 °C. With about 9 rainy days it is moderate.
Cape Town · SeptemberPhoto: Dietmar Rabich · CC BY-SA 4.0Climate facts
- Day
- 17 °C
- Night
- 14 °C
- Sea
- 15 °C
- Rainy days
- 9 rainy days
- Sun
- 6 h/day
- Humidity
- 79 %
Suitability by travel type
BeachUnsuitable38/100
City breakExcellent81/100
ActiveGood78/100
FamilyUnsuitable39/100
In favour
- No particular highlights.
To consider
- Rather cool at around 17 °C
- Sea still cool (15 °C)
All months at a glance
22J
22F
21M
19A
18M
16J
16J
16A
17S
18O
19N
21D
5J
4F
5M
8A
11M
13J
12J
11A
9S
7O
6N
5D
Similar destinations in September
Frequently asked questions
How warm is Cape Town in September?
Daytime highs average around 17 °C, with nights around 14 °C.
Can you swim in Cape Town in September?
The sea is about 15 °C (cold).
Does it rain a lot in Cape Town in September?
On the long-term average, expect about 9 rainy days.
When is the best time to visit Cape Town?
The most favourable months are usually the ones highlighted on the overview page. Values are historical averages, not a forecast.