What is the weather like in Florianópolis vs Porto Alegre in September?

In September, Florianópolis averages 24°C high / 16°C low with about 105 mm of rain; Porto Alegre averages 23°C high / 14°C low with about 171 mm.

Florianópolis vs Porto Alegre in September

Porto Alegre is the better pick in September — 81 vs 77 on SeasonMap's comfort score. Porto Alegre is nice, soaked, muggy air, while Florianópolis is warm, rainy, muggy air.

Florianópolis vs Porto Alegre — September climate, side by side

	🇧🇷 Florianópolis	🇧🇷 Porto Alegre
Comfort score	77/100 (B)	81/100 (A)
Feels-like high	25°C	23°C
Avg high / low	24° / 16°	23° / 14°
Rainfall	105 mm	171 mm
Rainy days	12	11
Humidity	82%	80%
Air quality (AQI)	51	52

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

Month by month

Florianópolis vs Porto Alegre in September — FAQ

Is September better in Florianópolis or Porto Alegre?: Porto Alegre is the better pick in September — 81 vs 77 on SeasonMap's comfort score. Porto Alegre is nice, soaked, muggy air, while Florianópolis is warm, rainy, muggy air.
What is the weather like in Florianópolis vs Porto Alegre in September?: In September, Florianópolis averages 24°C high / 16°C low with about 105 mm of rain; Porto Alegre averages 23°C high / 14°C low with about 171 mm.