Weather in Montevideo in December
December in Montevideo is mild with average temperatures around 21.3°C (70.3°F). Moderate rainfall of 86mm 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
24.5°C
76.1°F
Low
18.0°C
64.4°F
Precipitation
86 mm
3.4 inches
~8 rainy days
Conditions
Humidity
72%
Comparison to Adjacent Months
December is 2.6°C warmer than November.