Weather in Rio de Janeiro in January
January in Rio de Janeiro is warm with average temperatures around 26.1°C (79.0°F). Expect significant rainfall with 208mm across approximately 20 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
28.6°C
83.5°F
Low
23.6°C
74.5°F
Precipitation
208 mm
8.2 inches
~20 rainy days
Conditions
Humidity
83%
Comparison to Adjacent Months
January is 25mm drier than December.
January is 55mm wetter than February.