Weather in Montreal: May
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Average day temperature: | 63.7°F |
| Average night temperature: | 50.7°F | |
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Sea water temperature: | 53.6°F |
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Number of sunny days: | 11 days |
| Day length: | 14.3 - 15.4 hours | |
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Number of rainy days: | 5 days |
| Precipitation totals: | 2.6 in. | |
| more information | ||
14 days
forecast
forecast
| Montreal |
sea water
temperature
temperature
| Montreal |
Air temperature in May, °F
Show year:
2026
2025
2024
The highest day temperature during May of 2026 was 79°F. At the same time the lowest night temperature was 37°F. Daily and nightly averages during May were 60.3°F and 48.9°F.
Sea water temperature in Montreal in May, °F
Show year:
2026
2025
2024
The average sea water temperature in May of 2026 was 56.3°F. The highest and lowest sea temperatures during the month were 63.1°F and 52.5°F.
Sunny, partly cloudy and cloudy days
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
Precipitation total value in Montreal in May is 2.6 in. Other months of the year show relatively similar values.
Wind speed in May, mph
The average wind speed value in May is 7.5 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.9.
Best time for vacation in Montreal
Montreal on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Montreal
Local time: 20:38
June 06, saturday
2100
68°F
NE
14 mph
14 mph
June 07, sunday
0000
66°F
E
16 mph
16 mph
0300
64°F
E
15 mph
15 mph
0600
61°F
E
14 mph
14 mph
0900
59°F
SE
11 mph
11 mph
1200
59°F
S
9 mph
9 mph
1500
61°F
SW
10 mph
10 mph
1800
64°F
W
6 mph
6 mph
