Cape Town weather in September (Western Cape, South Africa)

You can expect very pleasant temperatures during the day in September. The average maximum daytime temperature in Cape Town in September lies at 19.1°C (66.38°F). The average minimum temperature is 8.5°C (47.3°F) (usually the minimum temperature is noted at night).

The amount of rain during this month is moderate with an average of 41mm (1.6 inches). There are generally around 10 rainy days. If you enjoy blue skies and sunshine, then this is a great time to go to Cape Town with 225 hours of sun during the entire month.

So what to wear in September? Bring a rain jacket just in case since it will be raining a few days during this period. Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. At night it can still cool off so best to pack some warmer nightwear as well. With a water temperature of around 15.0°C (59°F), there is no need to bring your swimwear.

No idea where to travel to this year? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.

For other monthly average weather and what to do in September look at the numbers below.


Monthly Averages in September

Show in Fahrenheit

Min Temperature 8 °C
Max Temperature 19 °C
Water Temperature 15 °C
Chance of Rain 33%
Precipitation 41mm
Rainy Days 10
Sunshine Hours 225

Where to stay in Cape Town

Where to go in South Africa in September

Find out more about the weather in South Africa in September and which places have the best weather conditions in this month.

Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inch a month).

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Outdoor sports

Weather Forecasts for Cape Town (Western Cape)

Tue   Feb 07
25°C | 19°C
S 32 km/h
0.2 mm
broken clouds and no rain

broken clouds and no rain

Wed   Feb 08
30°C | 18°C
S 40 km/h
clear and no rain

clear and no rain

Thu   Feb 09
29°C | 16°C
S 32 km/h
clear and no rain

clear and no rain

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Cape Town.

Our site offers climate and forecast data for almost all countries in the world. Are you going to South Africa? On this website you can find historical weather averages for many cities in South Africa. Not sure yet where to go? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.