Sao Paulo vs Rio de Janeiro

Sao Paulo and Rio de Janeiro are closely matched in October. 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 25°C. Rio de Janeiro is also comfortable at 28°C.

For travelers who prioritize dry weather, both cities are equally dry in October.

Sao Paulo reaches an average high of 25°C (77°F) and drops to 16°C (61°F) at night during October. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Rio de Janeiro averages 28°C (82°F) for the high and 20°C (68°F) for the low, with a daily range of 8°C. The 3°C difference is noticeable but not dramatic.

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

Sao Paulo receives approximately 110 mm of rainfall across 14 rain days during October. You can expect rain roughly every other day.

Rio de Janeiro sees 115 mm over 14 rain days. Both cities are equally rainy this month.

Both cities share similar humidity levels at 78%.