Weather in Montréal in May
May in Montréal is cool with average temperatures around 12.8°C (55.0°F). Moderate rainfall of 93mm spread over 15 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
18.1°C
64.6°F
Low
7.5°C
45.5°F
Precipitation
93 mm
3.7 inches
~15 rainy days
Conditions
Humidity
79%
Comparison to Adjacent Months
May is 7.5°C warmer than April.
May is 5.4°C cooler than June.