Cape Town, South Africa skyline

Cape Town Weather in August

Cape Town, South Africa in August: how the month usually turns out, from 2006–2025 averages.

A typical August day in Cape Town peaks at 16.5°C (61.7°F) and drops to 9.8°C (49.6°F) overnight; expect about 10 rainy days (83 mm in total) and 9.2 hours of sunshine daily.

Avg high

16.5°C (61.7°F)

Avg low

9.8°C (49.6°F)

Rainfall

83 mm (3.3 in)

Rainy days

10 days

Sunshine

9.2 h / day

Humidity

79%

August vs the rest of the year

On temperature, August beats 1 of 11 other months, and it ranks as the 3rd wettest month of the year.

MonthAvg highvs AugustRainRainy days
January25.9°C (78.6°F)+9.4°C (+16.9°F)11 mm3
February25.9°C (78.6°F)+9.4°C (+16.9°F)12 mm2
March24.5°C (76.1°F)+8°C (+14.4°F)23 mm4
April22.3°C (72.1°F)+5.8°C (+10.4°F)34 mm4
May19.3°C (66.7°F)+2.8°C (+5°F)66 mm8
June17.1°C (62.8°F)+0.6°C (+1.1°F)112 mm11
July16.4°C (61.5°F)−0.1°C (−0.2°F)96 mm10
August16.5°C (61.7°F)—83 mm10
September17.9°C (64.2°F)+1.4°C (+2.5°F)44 mm7
October20.8°C (69.4°F)+4.3°C (+7.7°F)28 mm5
November22.4°C (72.3°F)+5.9°C (+10.6°F)29 mm5
December24.3°C (75.7°F)+7.8°C (+14°F)20 mm4

What August feels like in Cape Town

Late winter arrives in Cape Town with August (Cape Town is in the southern hemisphere, so the seasons run opposite to Europe and North America). Expect cool, jacket-on afternoons — comfortable for a long walk. The gap between afternoon and night is small, so nights are cool and the temperature hardly changes after dark. Moisture in the air gives the cold a damp edge.

Rain in Cape Town in August

Showers are a regular feature, arriving about one day in 3. Wet days average about 8.3 mm (0.3 in), enough to soak you without an umbrella. That is close to Cape Town's typical rain per wet day for the whole year (about 7.6 mm). It is among the three wettest months of the year.

Daylight and sunshine in August

In mid-August, sunrise is at about 7:26 am and sunset at about 6:16 pm (local time) — 10 h 49 min of daylight. Days are getting longer: 44 min more daylight than in mid-July. About 85% of daylight hours are sunny; in short, skies are mostly clear.

How August compares to the rest of the year

Ranked by average high, August comes out as the 2nd coolest month in Cape Town. It is about as warm as July, with 13 mm less rain. Temperatures keep climbing into September. September averages a high of 17.9°C (64.2°F).

Who August suits

  • Sightseeing: a good fit — the weather rarely gets in the way of a city walk.
  • Parks & outdoor: a good fit — pleasant for gardens, parks and riversides.
  • Beach: less ideal — the sea air is too cool.
  • Hiking: less ideal — trails are cool.

Tips for visiting Cape Town in August

Rain Protection

A compact umbrella and a light waterproof jacket.

Light Jacket

Cool days — a light jacket or sweater for walking around.

Sunglasses

Bright days make sunglasses worth packing.

Quick questions

How warm is Cape Town in August?

Afternoons average 16.5°C (61.7°F) and nights about 9.8°C (49.6°F) — cool by most people's standards. It is the 2nd coolest month of the year.

Does it rain a lot in Cape Town in August?

Quite a lot — 83 mm spread over about 10 days.

What should I wear in Cape Town in August?

Based on the averages: rain protection, a light jacket and sunglasses. Evenings feel similar to the day, so the same clothes work from morning to night.

Is August or September better for visiting Cape Town?

September scores better on our climate ranking (#9 of 12 vs #10), rated Good against Good. September is warmer and has fewer rainy days.

Is August a good time to visit Cape Town?

Good

Good — mild but cool days, some rainy days (about 10), plenty of sunshine (9.2 h a day). Within Cape Town's own year, August ranks #10 of 12 — one of the least comfortable months.

August in other South Africa cities

Warmer or drier places in August

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Cape Town weather by month.