What is the weather like in Belém vs Rio de Janeiro in September?

In September, Belém averages 32°C high / 24°C low with about 23 mm of rain; Rio de Janeiro averages 29°C high / 20°C low with about 60 mm.

Belém vs Rio de Janeiro in September

Rio de Janeiro is the better pick in September — 88 vs 76 on SeasonMap's comfort score. Rio de Janeiro is hot, a little rain, while Belém is sweltering, dry, clean air.

Belém vs Rio de Janeiro — September climate, side by side

	🇧🇷 Belém	🇧🇷 Rio de Janeiro
Comfort score	76/100 (B)	88/100 (A)
Feels-like high	36°C	31°C
Avg high / low	32° / 24°	29° / 20°
Rainfall	23 mm	60 mm
Rainy days	7	9
Humidity	74%	74%
Air quality (AQI)	34	70

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

Month by month

Belém vs Rio de Janeiro in September — FAQ

Is September better in Belém or Rio de Janeiro?: Rio de Janeiro is the better pick in September — 88 vs 76 on SeasonMap's comfort score. Rio de Janeiro is hot, a little rain, while Belém is sweltering, dry, clean air.
What is the weather like in Belém vs Rio de Janeiro in September?: In September, Belém averages 32°C high / 24°C low with about 23 mm of rain; Rio de Janeiro averages 29°C high / 20°C low with about 60 mm.