Weather in Rio de Janeiro in March
March in Rio de Janeiro is warm with average temperatures around 25.8°C (78.4°F). Expect significant rainfall with 173mm across approximately 19 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
28.1°C
82.6°F
Low
23.4°C
74.1°F
Precipitation
173 mm
6.8 inches
~19 rainy days
Conditions
Humidity
83%
Comparison to Adjacent Months
March is 72mm wetter than April.