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Western Cape weather in September

Are you planning a trip to Western Cape in September and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Western Cape in September?

Western Cape is a region in South Africa. September in Western Cape generally has temperatures that range from moderate to warm, with precipitation levels ranging from low to moderate.

The average maximum daytime temperatures vary from moderate in Kommetjie at 17°C to warm in Beaufort West at 23°C. Nighttime temperatures generally drop to 8°C in Beaufort West and 14°C in Kommetjie.

In September, precipitation varies across different areas. From low rainfall in Beaufort West with an average of 16 mm to moderate rainfall in Paarl with 80 mm. Meanwhile, Cape Town enjoys close to 225 hours of sunlight. This means it's a great month if you prefer bright and sunny days.

For a closer look at September's conditions in Western Cape, see the map below. For a more detailed look at Western Cape's yearly weather, check out our Western Cape climate page.

Where to go in Western Cape in September

Find more information for the most popular destinations in the Western Cape on the map below. Click on a destination dot for more detailes.

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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°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in September for the 5 most popular destinations in Western Cape?

Cape Town

In September Cape Town generally has pleasant temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Cape Town
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
17°C 
10°C 
212 hours 
98 mm 
13 days 
18°C 
11°C 
225 hours 
63 mm 
10 days 
October   >> October
>>  
20°C 
13°C 
278 hours 
41 mm 
8 days 
Climate in Cape Town

Knysna

In September Knysna generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 12°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Knysna
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
18°C 
11°C 
260 hours 
67 mm 
10 days 
19°C 
12°C 
255 hours 
55 mm 
11 days 
October   >> October
>>  
20°C 
14°C 
300 hours 
65 mm 
13 days 
Climate in Knysna

Stellenbosch

In September Stellenbosch generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Stellenbosch
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
18°C 
8°C 
212 hours 
105 mm 
13 days 
19°C 
9°C 
225 hours 
74 mm 
11 days 
October   >> October
>>  
22°C 
11°C 
278 hours 
50 mm 
9 days 
Climate in Stellenbosch

Hermanus

In September Hermanus generally has pleasant temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Hermanus
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
17°C 
10°C 
78 mm 
13 days 
18°C 
11°C 
56 mm 
10 days 
October   >> October
>>  
20°C 
13°C 
47 mm 
9 days 
Climate in Hermanus

Plettenberg Bay

In September Plettenberg Bay generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 13°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Plettenberg Bay
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
18°C 
12°C 
260 hours 
71 mm 
10 days 
19°C 
13°C 
255 hours 
56 mm 
10 days 
October   >> October
>>  
20°C 
14°C 
300 hours 
65 mm 
12 days 
Climate in Plettenberg Bay

Is your destination not in the list? Have a look at other destinations in Western Cape, in South Africa.

Is September the best time to visit Western Cape?

Given the typically pleasant weather conditions in Cape Town, September might be a good time to visit Western Cape. However, the weather conditions may vary depending on your destination.

On average, the best time to visit Western Cape is in January, February, March, April, May, October, November and December with generally perfect weather in Cape Town. In contrast, July tends to have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in Western Cape. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to South Africa? Get detailed 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.