Foz do Iguaçu vs Rio de Janeiro in September

Rio de Janeiro is the better pick in September — 88 vs 75 on SeasonMap's comfort score. Rio de Janeiro is hot, a little rain, while Foz do Iguaçu is hot, rainy.

Foz do Iguaçu vs Rio de JaneiroSeptember climate, side by side

Foz do IguaçuRio de Janeiro
Comfort score75/100 (B)88/100 (A)
Feels-like high32°C31°C
Avg high / low30° / 17°29° / 20°
Rainfall92 mm60 mm
Rainy days89
Humidity69%74%
Air quality (AQI)5770

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Foz do Iguaçu vs Rio de Janeiro in September — FAQ

Is September better in Foz do Iguaçu or Rio de Janeiro?
Rio de Janeiro is the better pick in September — 88 vs 75 on SeasonMap's comfort score. Rio de Janeiro is hot, a little rain, while Foz do Iguaçu is hot, rainy.
What is the weather like in Foz do Iguaçu vs Rio de Janeiro in September?
In September, Foz do Iguaçu averages 30°C high / 17°C low with about 92 mm of rain; Rio de Janeiro averages 29°C high / 20°C low with about 60 mm.