Avg high
17°C
Avg low
10°C
Rainfall
99 mm
Rain days
11.2
Sunshine
9 h/day
Daylight
10.7 h
What to pack for Cape Town in August
- long sleeves and a warm layer
- a medium jacket
- a compact umbrella or rain shell — rain is frequent
Humidity averages 78%; max daily wind around 21 km/h.
How August compares
Best months in Cape Town: September–May. See the full best time to visit Cape Town guide.
Cape Town in August: the details
In August, Cape Town sees average daytime highs of 17°C (62°F) and overnight lows of 10°C (49°F). Rainfall totals roughly 99 mm across 11.2 rainy days, and the sun shines about 9 hours per day with 10.7 hours of daylight mid-month. Relative humidity averages 78%.
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Cape Town, South Africa (-33.93, 18.42) — see our methodology. Actual conditions vary year to year.
Where should you go next month?
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