Weather in Rio de Janeiro in May
May in Rio de Janeiro is mild with average temperatures around 22.7°C (72.9°F). Moderate rainfall of 71mm spread over 10 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
25.1°C
77.2°F
Low
20.2°C
68.4°F
Precipitation
71 mm
2.8 inches
~10 rainy days
Conditions
Humidity
80%
Comparison to Adjacent Months
May is 29mm drier than April.
May is 22mm wetter than June.