Weather Comparison
Side-by-side weather comparison for August
| Metric | Cape Town | Buenos Aires | Better |
|---|---|---|---|
| Average HighHigher is warmer | 17°C (63°F)▲ | 16°C (61°F) | Cape Town |
| Average LowHigher is milder | 10°C (50°F)▲ | 9°C (48°F) | Cape Town |
| Rain DaysFewer is drier | 9 days | 7 days▲ | Buenos Aires |
| PrecipitationLess is drier | 74 mm | 72 mm▲ | Buenos Aires |
| Sunshine HoursMore is sunnier | 9h/day▲ | 8h/day | Cape Town |
| HumidityLower is more comfortable | 70% | 70% | Tie |
| UV IndexLower is safer | 2 | 2 | Tie |
| Wind SpeedCalmer is better | 20 km/h▲ | 23 km/h | Cape Town |
Cape Town and Buenos Aires are closely matched in August. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.
Cape Town sits in the comfortable travel range at 17°C. Buenos Aires is also comfortable at 16°C.
For travelers who prioritize dry weather, Buenos Aires is the stronger choice in August. Cape Town receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.
Cape Town reaches an average high of 17°C (63°F) and drops to 10°C (50°F) at night during August. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.
Buenos Aires averages 16°C (61°F) for the high and 9°C (48°F) for the low, with a daily range of 7°C. The two cities feel quite similar in terms of temperature.
Both cities are in the Southern Hemisphere, so they share the same seasonal pattern in August.
Cape Town receives approximately 74 mm of rainfall across 9 rain days during August. You can expect rain roughly every other day.
Buenos Aires sees 72 mm over 7 rain days. That makes Buenos Aires the drier option by 2 rain days and 2 mm of total precipitation.
Both cities share similar humidity levels at 70%.
Highs of 17°C, lows of 10°C, 9 rain days
Highs of 16°C, lows of 9°C, 7 rain days
Pack for both: warm layers, a mid-weight jacket, long trousers, a packable rain jacket, an umbrella. These items are useful in either destination during August.
The table below shows average high temperatures and rain days for every month. August is highlighted for quick reference.
| Month | Cape Town | Buenos Aires | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 26°C | 3d | 28°C | 7d |
| Feb | 26°C | 2d | 27°C | 8d |
| Mar | 25°C | 3d | 25°C | 8d |
| Apr | 22°C | 5d | 21°C | 8d |
| May | 19°C | 7d | 17°C | 7d |
| Jun | 17°C | 10d | 14°C | 7d |
| Jul | 17°C | 9d | 13°C | 7d |
| Aug | 17°C | 9d | 16°C | 7d |
| Sep | 18°C | 7d | 17°C | 7d |
| Oct | 20°C | 5d | 20°C | 10d |
| Nov | 22°C | 5d | 24°C | 8d |
| Dec | 24°C | 3d | 27°C | 8d |
Cape Town Weather in August
Full forecast, packing tips, and activities
Buenos Aires Weather in August
Full forecast, packing tips, and activities