Weather in Porto Alegre in December
In an average December, Porto Alegre sees a daily high around 29°C and a low around 19°C, based on 1980–2026 of local climate records.
| Average high | 29°C |
|---|---|
| Typical high range | 24°C to 34°C |
| Average low | 19°C |
| Typical low range | 16°C to 22°C |
| Average daily precipitation | 5 mm |
December records
The most extreme December on record for each metric, across 1980–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
40°C
1995-12-18
Lowest
20°C
2020-12-06
Low
Highest
26°C
2012-12-25
Lowest
11°C
1982-12-08
Feels-like
Highest
62°C
2013-12-26
Lowest
11°C
1982-12-08
Humidity
Highest
24.1 g/m³
2025-12-27
Lowest
8.0 g/m³
2011-12-01
Wind
Highest
40 km/h
1998-12-17
Lowest
8 km/h
1991-12-19
Gust
Highest
81 km/h
2003-12-08
Lowest
18 km/h
2015-12-27
Precip
Wettest
301 mm
2015
Driest
44 mm
1986
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