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Weather in September in South Africa

Planning a journey to South Africa this September and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What is the weather like in South Africa in September?

South Africa has a wide variety of climate types. During September, you can expect temperatures that range from moderate to very warm and precipitation levels ranging from almost none to moderate.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is moderate in Kommetjie at 17°C to very warm in Kruger National Park at 31°C. Nighttime temperatures generally drop to 18°C in Kruger National Park and 14°C in Kommetjie.

Precipitation

In September, precipitation varies across different areas. From almost no rainfall in Kotzeshoop with an average of 4.2 mm to moderate rainfall in Port Saint Johnʼs with 88 mm.

Average sunshine

The days are mostly sunny, with an average total of around 225 hours of sunshine in Cape Town. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

For specific regional insights in South Africa for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our South Africa climate page.

Where to go in South Africa in September

Find more information for the most popular destinations in the South Africa 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 South Africa?

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

Johannesburg

In September Johannesburg generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 11°C and low monthly rainfall. So on average the conditions are perfect that month.

Johannesburg
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
<<  
22°C 
7°C 
284 hours 
10 mm 
2 days 
26°C 
11°C 
281 hours 
24 mm 
3 days 
October   >> October
>>  
27°C 
13°C 
270 hours 
77 mm 
9 days 
Climate in Johannesburg

Durban

In September Durban generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 17°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Durban
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
<<  
24°C 
15°C 
216 hours 
40 mm 
6 days 
24°C 
17°C 
173 hours 
68 mm 
10 days 
October   >> October
>>  
24°C 
18°C 
169 hours 
97 mm 
14 days 
Climate in Durban

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

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

Is September the best time to visit South Africa?

Given the typically pleasant weather conditions in Cape Town, September might be a good time to visit South Africa. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, the best visiting conditions can be found in January, February, March, April, May, October, November and December offering mostly perfect weather in Cape Town. On the other hand, the month of July tends to have unpleasant weather conditions.

Interested in more climate information?

We have much more information about the climate in South Africa. 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 travel conditions. Find out where to go with our weather planner.