Weather Comparison
Side-by-side weather comparison for March
| Metric | Cape Town | Buenos Aires | Better |
|---|---|---|---|
| Average HighHigher is warmer | 22°C (72°F) | 25°C (77°F)▲ | Buenos Aires |
| Average LowHigher is milder | 13°C (55°F) | 18°C (64°F)▲ | Buenos Aires |
| Rain DaysFewer is drier | 4 days▲ | 8 days | Cape Town |
| PrecipitationLess is drier | 45 mm▲ | 100 mm | Cape Town |
| Sunshine HoursMore is sunnier | 4h/day | 10h/day▲ | Buenos Aires |
| HumidityLower is more comfortable | 65%▲ | 70% | Cape Town |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 15 km/h▲ | 22 km/h | Cape Town |
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Cape Town edges ahead as the better destination in March. Cape Town offers 4 hours of daily sunshine with only 4 rain days, while Buenos Aires sees 10 sunshine hours and 8 rain days.
Cape Town sits in the comfortable travel range at 22°C. Buenos Aires is also comfortable at 25°C.
For travelers who prioritize dry weather, Cape Town is the stronger choice in March. Buenos Aires receives 6 more hours of sunshine per day, which matters for sightseeing and outdoor activities.
Cape Town reaches an average high of 22°C (72°F) and drops to 13°C (55°F) at night during March. The daily temperature range is 9°C, meaning moderate variation throughout the day.
Buenos Aires averages 25°C (77°F) for the high and 18°C (64°F) for the low, with a daily range of 7°C. The 3°C difference is noticeable but not dramatic.
Both cities are in the Southern Hemisphere, so they share the same seasonal pattern in March.
Cape Town receives approximately 45 mm of rainfall across 4 rain days during March. Rain is occasional, so a light rain jacket should suffice.
Buenos Aires sees 100 mm over 8 rain days. That makes Cape Town the drier option by 4 rain days and 55 mm of total precipitation.
Humidity also differs: Cape Town averages 65% while Buenos Aires sits at 70%. Buenos Aires will feel muggier, especially at higher temperatures.
Highs of 22°C, lows of 13°C, 4 rain days
Highs of 25°C, lows of 18°C, 8 rain days
Pack for both: light layers, a light jacket for evenings, sunscreen. These items are useful in either destination during March.
The table below shows average high temperatures and rain days for every month. March is highlighted for quick reference.
| Month | Cape Town | Buenos Aires | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 28°C | 1d | 28°C | 7d |
| Feb | 26°C | 2d | 27°C | 8d |
| Mar | 22°C | 4d | 25°C | 8d |
| Apr | 18°C | 5d | 21°C | 8d |
| May | 16°C | 6d | 17°C | 7d |
| Jun | 15°C | 7d | 14°C | 7d |
| Jul | 16°C | 6d | 13°C | 7d |
| Aug | 19°C | 5d | 16°C | 7d |
| Sep | 22°C | 4d | 17°C | 7d |
| Oct | 26°C | 2d | 20°C | 10d |
| Nov | 28°C | 1d | 24°C | 8d |
| Dec | 29°C | 1d | 27°C | 8d |
Cape Town Weather in March
Full forecast, packing tips, and activities
Buenos Aires Weather in March
Full forecast, packing tips, and activities