Weather in September in South Africa

Many people wonder what the weather conditions are in September in South Africa. Is this month a good time to go to South Africa? To answer that question we created this page with all the information you need.

What is the weather like in South Africa in September?

The weather in South Africa in September ranges from pleasant to perfect depending on the destination.

September has maximum daytime temperatures ranging from moderate in Port Nolloth with 18°C (64°F) to very warm temperatures in Phalaborwa with 31°C (88°F). Nighttime temperatures generally drop to 14°C (57°F) in Phalaborwa and 9°C (48°F) in Port Nolloth.

Precipitation ranges from almost non in Upington with 4mm (0.2inch) rainfall to moderate in East London with 80mm (3.1inch) rainfall. In general it is also a sunny month with an average of 225 hours of sunshine in Cape Town during the whole month.

Where to go in South Africa in September

Find the average weather conditions in September for the most popular destinations in South Africa on the map below. Click on a destination dot for more detailed information.

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).

Popular destinations in South Africa

What is the weather like in September for the 5 most popular destinations in South Africa?

Average weather in Cape Town

In September Cape Town generally has moderate temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 9°C (47°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

Cape Town
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
18°C / 64°F 
7°C / 45°F 
212 hours 
77mm / 3inch 
14 days 
19°C / 66°F 
9°C / 47°F 
225 hours 
41mm / 1.6inch 
10 days 
October   >> October
>>  
21°C / 70°F 
11°C / 51°F 
278 hours 
33mm / 1.3inch 
9 days 
Climate in Cape Town

Average weather in Johannesburg

In September Johannesburg generally has warm temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 9°C (48°F) and low monthly rainfall. So on average the conditions are perfect that month.

Johannesburg
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
19°C / 67°F 
6°C / 43°F 
284 hours 
6mm / 0.2inch 
2 days 
23°C / 73°F 
9°C / 48°F 
281 hours 
27mm / 1.1inch 
3 days 
October   >> October
>>  
24°C / 75°F 
11°C / 52°F 
270 hours 
76mm / 3inch 
10 days 
Climate in Johannesburg

Average weather in Durban

In September Durban generally has warm temperatures with maximum daytime temperatures around 23°C (74°F), minimum nighttime temperatures around 15°C (60°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

Durban
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
23°C / 73°F 
13°C / 55°F 
216 hours 
65mm / 2.6inch 
7 days 
23°C / 74°F 
15°C / 60°F 
173 hours 
73mm / 2.9inch 
11 days 
October   >> October
>>  
24°C / 75°F 
17°C / 62°F 
169 hours 
101mm / 4inch 
15 days 
Climate in Durban

Average weather in Knysna

In September Knysna generally has moderate temperatures with maximum daytime temperatures around 18°C (65°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

Knysna
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
18°C / 64°F 
10°C / 50°F 
260 hours 
68mm / 2.7inch 
11 days 
18°C / 65°F 
11°C / 52°F 
255 hours 
45mm / 1.8inch 
12 days 
October   >> October
>>  
19°C / 67°F 
13°C / 55°F 
300 hours 
88mm / 3.5inch 
14 days 
Climate in Knysna

Average weather in Stellenbosch

In September Stellenbosch generally has moderate temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 9°C (47°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

Stellenbosch
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
18°C / 64°F 
7°C / 45°F 
212 hours 
77mm / 3inch 
14 days 
19°C / 66°F 
9°C / 47°F 
225 hours 
41mm / 1.6inch 
10 days 
October   >> October
>>  
21°C / 70°F 
11°C / 51°F 
278 hours 
33mm / 1.3inch 
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 go to South Africa?

In our opinion September is a good time to visit South Africa with commonly pleasant weather in Cape Town.

On average the best time to visit South Africa is in January, February, March, April, May, October, November and December with generally perfect weather in Cape Town. The worst months are July and August that can have tolerable 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 almost all countries 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 suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.