Weather in Porto Alegre, Rio Grande do Sul, Brazil in September
In an average September, Porto Alegre sees a daily high around 22°C and a low around 12°C, based on 1981–2026 of local climate records.
| Average high | 22°C |
|---|---|
| Typical high range | 17°C to 28°C |
| Average low | 12°C |
| Typical low range | 8°C to 16°C |
| Average daily precipitation | 5 mm |
September records
The most extreme September on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total September accumulation.
High
Highest
33°C
1994-09-23
Lowest
11°C
2002-09-01
Low
Highest
21°C
2018-09-30
Lowest
2°C
2006-09-05
Feels-like
Highest
47°C
1994-09-23
Lowest
-3°C
2006-09-05
Humidity
Highest
20.4 g/m³
2023-09-21
Lowest
5.8 g/m³
2006-09-04
Wind
Highest
49 km/h
2006-09-02
Lowest
8 km/h
2013-09-14
Precip
Wettest
352 mm
2023
Driest
57 mm
1994
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