Sao Paulo vs Rio de Janeiro

Sao Paulo and Rio de Janeiro are closely matched in May. 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.

Sao Paulo sits in the comfortable travel range at 22°C. Rio de Janeiro is also comfortable at 26°C.

For travelers who prioritize dry weather, Sao Paulo is the stronger choice in May. Rio de Janeiro receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Sao Paulo reaches an average high of 22°C (72°F) and drops to 14°C (57°F) at night during May. The daily temperature range is 8°C, meaning moderate variation throughout the day.

Rio de Janeiro averages 26°C (79°F) for the high and 19°C (66°F) for the low, with a daily range of 7°C. The 4°C difference is noticeable but not dramatic.

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

Sao Paulo receives approximately 59 mm of rainfall across 8 rain days during May. You can expect rain roughly every other day.

Rio de Janeiro sees 76 mm over 11 rain days. That makes Sao Paulo the drier option by 3 rain days and 17 mm of total precipitation.

Both cities share similar humidity levels at 78%.