Weather in Porto Alegre in September
In an average September, Porto Alegre sees a daily high around 22°C and a low around 13°C, based on 1980–2026 of local climate records.
| Average high | 22°C |
|---|---|
| Typical high range | 17°C to 28°C |
| Average low | 13°C |
| Typical low range | 9°C to 17°C |
| Average daily precipitation | 5 mm |
September records
The most extreme September on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
36°C
1994-09-24
Lowest
11°C
2002-09-01
Low
Highest
22°C
1981-09-09
Lowest
3°C
2006-09-05
Feels-like
Highest
54°C
2019-09-09
Lowest
0°C
2006-09-05
Humidity
Highest
20.2 g/m³
2015-09-24
Lowest
5.5 g/m³
2006-09-04
Wind
Highest
46 km/h
2006-09-02
Lowest
7 km/h
1988-09-21
Gust
Highest
78 km/h
2012-09-19
Lowest
16 km/h
2011-09-10
Precip
Wettest
383 mm
2023
Driest
42 mm
2003
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