Weather Comparison
Side-by-side weather comparison for August
| Metric | Buenos Aires | Cape Town | Better |
|---|---|---|---|
| Average HighHigher is warmer | 11°C (52°F) | 17°C (63°F)▲ | Cape Town |
| Average LowHigher is milder | 3°C (37°F) | 10°C (50°F)▲ | Cape Town |
| Rain DaysFewer is drier | 3 days▲ | 9 days | Buenos Aires |
| PrecipitationLess is drier | 40 mm▲ | 74 mm | Buenos Aires |
| Sunshine HoursMore is sunnier | 3h/day | 9h/day▲ | Cape Town |
| HumidityLower is more comfortable | 65%▲ | 70% | Buenos Aires |
| UV IndexLower is safer | 2 | 2 | Tie |
| Wind SpeedCalmer is better | 15 km/h▲ | 20 km/h | Buenos Aires |
Buenos Aires and Cape Town 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.
Buenos Aires is on the cooler side at 11°C, requiring warmer clothing. Cape Town is also comfortable at 17°C.
For travelers who prioritize dry weather, Buenos Aires is the stronger choice in August. Cape Town receives 6 more hours of sunshine per day, which matters for sightseeing and outdoor activities.
Buenos Aires reaches an average high of 11°C (52°F) and drops to 3°C (37°F) at night during August. The daily temperature range is 8°C, meaning moderate variation throughout the day.
Cape Town averages 17°C (63°F) for the high and 10°C (50°F) for the low, with a daily range of 7°C. There is a notable 6°C gap between the two cities, so expect a very different feel.
Both cities are in the Southern Hemisphere, so they share the same seasonal pattern in August.
Buenos Aires receives approximately 40 mm of rainfall across 3 rain days during August. Rain is occasional, so a light rain jacket should suffice.
Cape Town sees 74 mm over 9 rain days. That makes Buenos Aires the drier option by 6 rain days and 34 mm of total precipitation.
Humidity also differs: Buenos Aires averages 65% while Cape Town sits at 70%. Cape Town will feel muggier, especially at higher temperatures.
Highs of 11°C, lows of 3°C, 3 rain days
Highs of 17°C, lows of 10°C, 9 rain days
Pack for both: warm layers, a mid-weight jacket, long trousers. 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 | Buenos Aires | Cape Town | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 23°C | 6d | 26°C | 3d |
| Feb | 20°C | 5d | 26°C | 2d |
| Mar | 16°C | 4d | 25°C | 3d |
| Apr | 11°C | 3d | 22°C | 5d |
| May | 8°C | 3d | 19°C | 7d |
| Jun | 7°C | 3d | 17°C | 10d |
| Jul | 8°C | 3d | 17°C | 9d |
| Aug | 11°C | 3d | 17°C | 9d |
| Sep | 16°C | 4d | 18°C | 7d |
| Oct | 20°C | 5d | 20°C | 5d |
| Nov | 23°C | 6d | 22°C | 5d |
| Dec | 25°C | 6d | 24°C | 3d |
Buenos Aires Weather in August
Full forecast, packing tips, and activities
Cape Town Weather in August
Full forecast, packing tips, and activities