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 33°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
39°C
1995-12-18
Lowest
19°C
2020-12-06
Low
Highest
26°C
2012-12-25
Lowest
11°C
1982-12-09
Feels-like
Highest
61°C
2013-12-26
Lowest
11°C
2018-12-08
Humidity
Highest
23.8 g/m³
2025-12-27
Lowest
8.3 g/m³
1982-12-07
Wind
Highest
44 km/h
1998-12-17
Lowest
6 km/h
1991-12-06
Gust
Highest
82 km/h
1998-12-17
Lowest
17 km/h
2015-12-27
Precip
Wettest
310 mm
2015
Driest
49 mm
2004
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