Weather in Buenos Aires in December
December in Buenos Aires is mild with average temperatures around 23.0°C (73.4°F). Moderate rainfall of 94mm spread over 8 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
26.1°C
79.0°F
Low
19.8°C
67.6°F
Precipitation
94 mm
3.7 inches
~8 rainy days
Conditions
Humidity
68%
Comparison to Adjacent Months
December is 2.6°C warmer than November.