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

In September, Rio de Janeiro averages 29°C high / 20°C low with about 60 mm of rain; Santa Marta averages 33°C high / 25°C low with about 234 mm.

Rio de Janeiro vs Santa Marta in September

Rio de Janeiro is the better pick in September — 88 vs 69 on SeasonMap's comfort score. Rio de Janeiro is hot, a little rain, while Santa Marta is sweltering, soaked, clean air.

Rio de Janeiro vs Santa Marta — September climate, side by side

	Rio de Janeiro	Santa Marta
Comfort score	88/100 (A)	69/100 (C)
Feels-like high	31°C	39°C
Avg high / low	29° / 20°	33° / 25°
Rainfall	60 mm	234 mm
Rainy days	9	24
Humidity	74%	83%
Air quality (AQI)	70	38

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

Rio de Janeiro vs Santa Marta in September — FAQ

Is September better in Rio de Janeiro or Santa Marta?: Rio de Janeiro is the better pick in September — 88 vs 69 on SeasonMap's comfort score. Rio de Janeiro is hot, a little rain, while Santa Marta is sweltering, soaked, clean air.
What is the weather like in Rio de Janeiro vs Santa Marta in September?: In September, Rio de Janeiro averages 29°C high / 20°C low with about 60 mm of rain; Santa Marta averages 33°C high / 25°C low with about 234 mm.