Cape Town vs Buenos Aires

Cape Town and Buenos Aires are closely matched in December. 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 can feel quite hot at 29°C, so plan for heat. Buenos Aires is also comfortable at 27°C.

For travelers who prioritize dry weather, Cape Town is the stronger choice in December. Buenos Aires receives 5 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

Cape Town reaches an average high of 29°C (84°F) and drops to 20°C (68°F) at night during December. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Buenos Aires averages 27°C (81°F) for the high and 19°C (66°F) for the low, with a daily range of 8°C. The 2°C difference is noticeable but not dramatic.

Both cities are in the Southern Hemisphere, so they share the same seasonal pattern in December.

Cape Town receives approximately 10 mm of rainfall across 1 rain days during December. Rain is rare this month, so dry conditions are likely.

Buenos Aires sees 88 mm over 8 rain days. That makes Cape Town the drier option by 7 rain days and 78 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.