Cape Town weather in August
August in Cape Town: cool, a little rain, with very humid — an excellent time to visit.
#10 of 12 months in Cape Town · #287 of 604 destinations to visit in August · comfort 80/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Cape Town climate normals — August
| Daytime high | 16°C / 62°F | 🙂 cool |
|---|---|---|
| Nighttime low | 9°C / 48°F | |
| Feels like (high) | 15°C / 59°F | |
| Rainfall | 60 mm / 2.3 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 9°C / 48°F | |
| Sunshine | 9.3 h/day | |
| Daylight | 10.9 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 70 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Cape Town in August — FAQ
- Is August a good time to visit Cape Town?
- August in Cape Town: cool, a little rain, with very humid — an excellent time to visit. It ranks #10 of 12 months for Cape Town on SeasonMap's comfort score (80/100).
- What is the weather like in Cape Town in August?
- In August, Cape Town averages a daily high of 16.4°C and a low of 9.1°C, with about 59.6 mm of rain over roughly 9 rainy days.
- What is the air quality in Cape Town in August?
- Cape Town has a mean US Air Quality Index of about 70 in August.