Stellenbosch weather in September (Western Cape, South Africa)

You can expect very pleasant temperatures during the day in September. The average maximum daytime temperature in Stellenbosch in September lies at 19.1°C (66.38°F). The average minimum temperature goes down to around 9.1°C (48.38°F) (often the minimum temperature is noted at night).

Rainfall during September is moderate with an average of 74mm (2.9 inches). There are generally around 10 rainy days. If you enjoy blue skies and sunshine, then this is a great time to go to Stellenbosch with 225 hours of sun during the entire month.

 

Stellenbosch, monthly averages in September

Show in Celsius

Min Temperature 48 °F  

Max Temperature 66 °F  

Water Temperature 59 °F *  

Chance of Rain 35%  

Precipitation 3 in  

Rainy days 11 days  

Humidity 77% *  

Sunshine 225 hrs *  

* Data from: Cape Town, South Africa (24 KM, 15 Miles).

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.

Weather conditions Weather

Temperatures

Precipitation

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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 / 3.5inches a month).

So what to wear in September? Bring a rain jacket in case it rains during your stay. Plan on layering your clothes, as some days or part of the day it can be nice and warm, while other times it can get quite chilly. At night it tends to cool off so best to pack some warm nightwear as well. With a water temperature of around 15.0°C (59°F), there is no need to bring your swimwear.

What To Do

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

Cycling

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

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

Our site offers climate and forecast data for every country 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 recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.