Weather in Porto Alegre in December
December in Porto Alegre is mild with average temperatures around 23.1°C (73.6°F). Expect significant rainfall with 110mm across approximately 12 days.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
28.2°C
82.8°F
Low
18.0°C
64.4°F
Precipitation
110 mm
4.3 inches
~12 rainy days
Conditions
Humidity
79%
Comparison to Adjacent Months
December is 2.2°C warmer than November.