Stellenbosch

Western Cape Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Western Cape, South Africa in August.

Thinking about venturing to Western Cape, South Africa this August and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Western Cape in August

Western Cape, South Africa is a region in South Africa. August in Western Cape generally has temperatures that range from mild to pleasant, with precipitation levels ranging from low to high.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is mild in Simonʼs Town at 17°C (63°F) to pleasant in Merweville at 21°C (70°F). Nighttime temperatures generally drop to 6°C (43°F) in Merweville and 13°C (55°F) in Simonʼs Town. In general, this month stands out as the coldest period throughout the year. However, even though August is the coolest month, you can still find places in Western Cape, South Africa with moderate temperatures, ensuring a pleasant experience throughout the year.

For a closer look at conditions across Western Cape, South Africa, refer to the map below.

Precipitation

In August, precipitation varies across different areas. From low rainfall in Merweville with an average of 15 mm (0.6 in) to high rainfall in Paarl with 111 mm (4.4 in).

Average sunshine

Several destinations enjoy plenty of sunshine this month. Cape Town sees close to 212 hours of sunlight, making it great for sun lovers.

Explore Western Cape by month

Pick a month to see the average temperature, rainfall and sunshine in Western Cape — and find the best time to visit. (based on Cape Town)

Best Places to Visit in Western Cape in August

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

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 Western Cape

What is the weather like in August for some of the most popular destinations in Western Cape, South Africa?

Temperature range in Western Cape (August)

Precipitation variation in Western Cape (August)

Cape Town

In August Cape Town generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

July
August
September
Max temperature
17°C (63°F)
17°C (63°F)
18°C (64°F)
Min temperature
10°C (50°F)
10°C (50°F)
11°C (52°F)
Monthly sun hours
193 hours
212 hours
225 hours
Monthly rainfall
110 mm (4.3 in)
98 mm (3.9 in)
63 mm (2.5 in)
Monthly rainy days
12 days
13 days
10 days
Weather conditions

Knysna

In August Knysna 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.

July
August
September
Max temperature
19°C (66°F)
18°C (64°F)
19°C (66°F)
Min temperature
11°C (52°F)
11°C (52°F)
12°C (54°F)
Monthly sun hours
241 hours
260 hours
255 hours
Monthly rainfall
52 mm (2 in)
67 mm (2.6 in)
55 mm (2.2 in)
Monthly rainy days
8 days
10 days
11 days
Weather conditions

Stellenbosch

In August Stellenbosch generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 8°C (46°F) and high monthly rainfall. So on average the conditions are tolerable that month.

July
August
September
Max temperature
17°C (63°F)
18°C (64°F)
19°C (66°F)
Min temperature
7°C (45°F)
8°C (46°F)
9°C (48°F)
Monthly sun hours
193 hours
212 hours
225 hours
Monthly rainfall
121 mm (4.8 in)
105 mm (4.1 in)
74 mm (2.9 in)
Monthly rainy days
12 days
13 days
11 days
Weather conditions

Hermanus

In August Hermanus generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 10°C (50°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

July
August
September
Max temperature
17°C (63°F)
17°C (63°F)
18°C (64°F)
Min temperature
10°C (50°F)
10°C (50°F)
11°C (52°F)
Monthly rainfall
89 mm (3.5 in)
78 mm (3.1 in)
56 mm (2.2 in)
Monthly rainy days
11 days
13 days
10 days
Weather conditions

Plettenberg Bay

In August Plettenberg Bay generally has pleasant temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 12°C (54°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

July
August
September
Max temperature
19°C (66°F)
18°C (64°F)
19°C (66°F)
Min temperature
11°C (52°F)
12°C (54°F)
13°C (55°F)
Monthly sun hours
241 hours
260 hours
255 hours
Monthly rainfall
56 mm (2.2 in)
71 mm (2.8 in)
56 mm (2.2 in)
Monthly rainy days
8 days
10 days
10 days
Weather conditions

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

Popular cities in August

Day & night temperatures, rainfall and average weather in Western Cape in August.

City Weather Day temp Night temp Rainfall
Cape Town 17°C (63°F) 10°C (50°F) 98 mm (3.9 in)
Knysna 18°C (64°F) 11°C (52°F) 67 mm (2.6 in)
Stellenbosch 18°C (64°F) 8°C (46°F) 105 mm (4.1 in)
Hermanus 17°C (63°F) 10°C (50°F) 78 mm (3.1 in)
Plettenberg Bay 18°C (64°F) 12°C (54°F) 71 mm (2.8 in)
Bloubergstrand 18°C (64°F) 10°C (50°F) 79 mm (3.1 in)

Western Cape weather in August: frequently asked questions

What is the weather like in Western Cape, South Africa in August?

In August, Western Cape, South Africa generally has tolerable weather conditions. Cape Town sees daytime temperatures near 17°C (63°F), with nights cooling to roughly 10°C (50°F).

What is the average temperature in Western Cape, South Africa in August?

Cape Town averages a daytime maximum of 17°C (63°F) in August, with overnight lows close to 10°C (50°F).

Does Western Cape, South Africa get a lot of rain in August?

August is on the drier side in Western Cape, South Africa. Cape Town averages only about 98 mm (3.9 in), with most days staying dry.

Is August a Good Time to Visit Western Cape, South Africa?

Given the typically tolerable weather conditions in Cape Town, August might be a good time to visit Western Cape, South Africa.

On average, the best time to visit Western Cape, South Africa is in January, February, March, April, May, October, November and December with generally perfect weather in Cape Town. On the other hand, the weather in July tends to be unpleasant.

Interested in more climate information?

We have much more information about the climate in Western Cape.

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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