Cape Town weather in August 2025

Expect 17°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Cape Town in August. Check more long-term weather averages for Cape Town in August before you book your next holiday to South Africa in 2025/2026.

  • 17°C maximum daytime temperature in August in Cape Town17
    17°C max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in August in Cape Town14
    14 days with some rainfall
  • 8°C minimum night-time temperature in August in Cape Town8
    8°C min night temperature
  • 11 hours of daylight per day in August in Cape Town11
    11 hours of daylight per day
  • No heat & humidity in August in Cape Town0
    No heat & humidity
  • 163 mm monthly rainfall in August in Cape Town163
    163 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in Cape Town4
    4 (Moderate) UV index
  • 15°C sea temperature in August in Cape Town15
    15°C sea temperature

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The August weather guide for South Africa (Cape Town) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about South Africa

How warm is it in Cape Town in August?

Daytime temperatures usually reach 17°C in Cape Town in August, falling to 8°C at night.

How sunny is it in Cape Town in August?

There are normally 7 hours of bright sunshine each day in Cape Town in August - that's 60% of daylight hours.

How warm is the sea around Cape Town in August?

The average sea temperature around Cape Town in August is 15°C.

Does it rain in Cape Town in August?

There are usually 14 days with some rain in Cape Town in August and the average monthly rainfall is 163mm.

Cape Town August sunrise & sunset times

Browse the sunrise and sunset times for Cape Town in August 2025. Select a month to view Cape Town sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 07:39 18:07
Saturday, 16th August 2025 07:24 18:17
Sunday, 31st August 2025 07:06 18:28

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