South Africa

South Africa Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in South Africa in September.

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 to Expect in South Africa in September

South Africa has a wide variety of climate types. During September, you can expect temperatures that range from mild 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 mild in Scarborough at 17°C (63°F) to very warm in Kruger National Park at 31°C (88°F). Nighttime temperatures generally drop to 18°C (64°F) in Kruger National Park and 14°C (57°F) in Scarborough.

To learn more about the conditions in specific areas of South Africa, check out the map below.

Precipitation

In September, precipitation varies across different areas. From almost no rainfall in Kotzeshoop with an average of 4.2 mm (0.2 in) to moderate rainfall in Port Saint Johnʼs with 88 mm (3.5 in).

Average sunshine

Plenty of sunshine can be expected in numerous places in September. Cape Town typically receives 225 hours of sunlight, making it ideal for those seeking sunny weather.

Explore South Africa by month

Best Places to Visit in South Africa in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across South Africa.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in South Africa

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

Temperature range in South Africa (September)

Precipitation variation in South Africa (September)

Cape Town

In September Cape Town generally has pleasant temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 11°C (52°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
17°C (63°F)
18°C (64°F)
20°C (68°F)
Min temperature
10°C (50°F)
11°C (52°F)
13°C (55°F)
Monthly sun hours
212 hours
225 hours
278 hours
Monthly rainfall
98 mm (3.9 in)
63 mm (2.5 in)
41 mm (1.6 in)
Monthly rainy days
13 days
10 days
8 days
Weather conditions

Johannesburg

In September Johannesburg generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 11°C (52°F) and low monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
22°C (72°F)
26°C (79°F)
27°C (81°F)
Min temperature
7°C (45°F)
11°C (52°F)
13°C (55°F)
Monthly sun hours
284 hours
281 hours
270 hours
Monthly rainfall
10 mm (0.4 in)
24 mm (0.9 in)
77 mm (3 in)
Monthly rainy days
2 days
3 days
9 days
Weather conditions

Durban

In September Durban generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 17°C (63°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

August
September
October
Max temperature
24°C (75°F)
24°C (75°F)
24°C (75°F)
Min temperature
15°C (59°F)
17°C (63°F)
18°C (64°F)
Monthly sun hours
216 hours
173 hours
169 hours
Monthly rainfall
40 mm (1.6 in)
68 mm (2.7 in)
97 mm (3.8 in)
Monthly rainy days
6 days
10 days
14 days
Weather conditions

Knysna

In September Knysna generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 12°C (54°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
18°C (64°F)
19°C (66°F)
20°C (68°F)
Min temperature
11°C (52°F)
12°C (54°F)
14°C (57°F)
Monthly sun hours
260 hours
255 hours
300 hours
Monthly rainfall
67 mm (2.6 in)
55 mm (2.2 in)
65 mm (2.6 in)
Monthly rainy days
10 days
11 days
13 days
Weather conditions

Stellenbosch

In September Stellenbosch generally has pleasant temperatures with maximum daytime temperatures around 19°C (66°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

August
September
October
Max temperature
18°C (64°F)
19°C (66°F)
22°C (72°F)
Min temperature
8°C (46°F)
9°C (48°F)
11°C (52°F)
Monthly sun hours
212 hours
225 hours
278 hours
Monthly rainfall
105 mm (4.1 in)
74 mm (2.9 in)
50 mm (2 in)
Monthly rainy days
13 days
11 days
9 days
Weather conditions

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

Popular cities in September

Day & night temperatures, rainfall and average weather in South Africa in September.

City Weather Day temp Night temp Rainfall
Cape Town 18°C (64°F) 11°C (52°F) 63 mm (2.5 in)
Johannesburg 26°C (79°F) 11°C (52°F) 24 mm (0.9 in)
Durban 24°C (75°F) 17°C (63°F) 68 mm (2.7 in)
Gqeberha 20°C (68°F) 14°C (57°F) 46 mm (1.8 in)
Bloemfontein 26°C (79°F) 9°C (48°F) 18 mm (0.7 in)
Mbombela 26°C (79°F) 12°C (54°F) 40 mm (1.6 in)

South Africa weather in September: frequently asked questions

What is the weather like in South Africa in September?

In September, South Africa generally has pleasant weather conditions. Cape Town sees daytime temperatures near 18°C (64°F), with nights cooling to roughly 11°C (52°F).

What is the average temperature in South Africa in September?

Daytime temperatures in Cape Town peak at roughly 18°C (64°F) in September, dropping to about 11°C (52°F) overnight.

Does South Africa get a lot of rain in September?

Rain is generally moderate to light in South Africa during September, with Cape Town averaging close to 63 mm (2.5 in).

Is September a Good 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.

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.

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