Buenos Aires vs Rio de Janeiro

Buenos Aires and Rio de Janeiro are closely matched in June. 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 7°C, requiring warmer clothing. Rio de Janeiro is also comfortable at 25°C.

For travelers who prioritize dry weather, Buenos Aires is the stronger choice in June. Rio de Janeiro receives 8 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

Buenos Aires reaches an average high of 7°C (45°F) and drops to -1°C (30°F) at night during June. The daily temperature range is 8°C, meaning moderate variation throughout the day.

Rio de Janeiro averages 25°C (77°F) for the high and 18°C (64°F) for the low, with a daily range of 7°C. There is a notable 18°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 June.

Buenos Aires receives approximately 30 mm of rainfall across 3 rain days during June. Rain is occasional, so a light rain jacket should suffice.

Rio de Janeiro sees 47 mm over 7 rain days. That makes Buenos Aires the drier option by 4 rain days and 17 mm of total precipitation.

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