What is the weather like in Porto Alegre vs Puerto Iguazú in September?

In September, Porto Alegre averages 23°C high / 14°C low with about 171 mm of rain; Puerto Iguazú averages 30°C high / 16°C low with about 92 mm.

Porto Alegre vs Puerto Iguazú in September

Porto Alegre is the better pick in September — 81 vs 76 on SeasonMap's comfort score. Porto Alegre is nice, soaked, muggy air, while Puerto Iguazú is hot, rainy.

Porto Alegre vs Puerto Iguazú — September climate, side by side

	🇧🇷 Porto Alegre	🇦🇷 Puerto Iguazú
Comfort score	81/100 (A)	76/100 (B)
Feels-like high	23°C	32°C
Avg high / low	23° / 14°	30° / 16°
Rainfall	171 mm	92 mm
Rainy days	11	8
Humidity	80%	70%
Air quality (AQI)	52	57

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

Month by month

Porto Alegre vs Puerto Iguazú in September — FAQ

Is September better in Porto Alegre or Puerto Iguazú?: Porto Alegre is the better pick in September — 81 vs 76 on SeasonMap's comfort score. Porto Alegre is nice, soaked, muggy air, while Puerto Iguazú is hot, rainy.
What is the weather like in Porto Alegre vs Puerto Iguazú in September?: In September, Porto Alegre averages 23°C high / 14°C low with about 171 mm of rain; Puerto Iguazú averages 30°C high / 16°C low with about 92 mm.