Weather in Porto Alegre in March
March in Porto Alegre is mild with average temperatures around 23.7°C (74.7°F). Expect significant rainfall with 103mm across approximately 13 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
18.8°C
65.8°F
Precipitation
103 mm
4.1 inches
~13 rainy days
Conditions
Humidity
78%
Comparison to Adjacent Months
March is 2.8°C warmer than April.