Sao Paulo vs Rio de Janeiro

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Sao Paulo edges ahead as the better destination in March. Sao Paulo offers 9 hours of daily sunshine with only 20 rain days, while Rio de Janeiro sees 10 sunshine hours and 21 rain days.

Sao Paulo sits in the comfortable travel range at 26°C. Rio de Janeiro runs hot at 30°C.

For travelers who prioritize dry weather, Sao Paulo is the stronger choice in March. 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 26°C (79°F) and drops to 19°C (66°F) at night during March. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.

Rio de Janeiro averages 30°C (86°F) for the high and 23°C (73°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 March.

Sao Paulo receives approximately 139 mm of rainfall across 20 rain days during March. Rain is frequent, so waterproof gear is essential.

Rio de Janeiro sees 210 mm over 21 rain days. That makes Sao Paulo the drier option by 1 rain day and 71 mm of total precipitation.

Both cities share similar humidity levels at 78%.