Rio de Janeiro vs Buenos Aires

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Buenos Aires edges ahead as the better destination in February. Buenos Aires offers 6 hours of daily sunshine with only 5 rain days, while Rio de Janeiro sees 10 sunshine hours and 17 rain days.

Rio de Janeiro can feel quite hot at 31°C, so plan for heat. Buenos Aires is also comfortable at 20°C.

For travelers who prioritize dry weather, Buenos Aires is the stronger choice in February. Rio de Janeiro receives 4 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

Rio de Janeiro reaches an average high of 31°C (88°F) and drops to 24°C (75°F) at night during February. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.

Buenos Aires averages 20°C (68°F) for the high and 12°C (54°F) for the low, with a daily range of 8°C. There is a notable 11°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 February.

Rio de Janeiro receives approximately 187 mm of rainfall across 17 rain days during February. Rain is frequent, so waterproof gear is essential.

Buenos Aires sees 60 mm over 5 rain days. That makes Buenos Aires the drier option by 12 rain days and 127 mm of total precipitation.

Humidity also differs: Rio de Janeiro averages 78% while Buenos Aires sits at 65%. Rio de Janeiro will feel muggier, especially at higher temperatures.