Measurements:
°C
°F
CURRENT WEATHER
07:53
Montreal
74°F
NE 11 mph
Feels like: 74°F
Precip: 0%
World Resorts Canada Montreal Weather

7 Day Weather Forecast

05.19
tue
DAY
80°F
NE 15 mph
precip
0%
NIGHT
72°F
NE 12 mph
precip
0%
05.20
wed
DAY
68°F
E 16 mph
precip
0%
NIGHT
48°F
SE 9 mph
precip
0%
05.21
thu
DAY
52°F
E 7 mph
precip
0%
NIGHT
48°F
E 5 mph
precip
0%
05.22
fri
DAY
62°F
E 12 mph
precip
0%
NIGHT
52°F
SW 4 mph
precip
0%
05.23
sat
DAY
60°F
SW 8 mph
precip
0%
NIGHT
50°F
SW 6 mph
precip
0%
05.24
sun
DAY
66°F
NW 7 mph
precip
0%
NIGHT
54°F
NE 7 mph
precip
100%
05.25
mon
DAY
54°F
N 10 mph
precip
0%
NIGHT
58°F
NW 3 mph
precip
100%

Montreal Sea Water Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Montreal was 12.0°F. The maximum and minimum values were 11.4°F and 13.4°F respectively.

Montreal on the Weather Map

Best Time to Visit Montreal
The most sunny months:
July 14 days
August 14 days
June 12 days
The most warm months:
July 82.4 °F
August 80.3 °F
June 75.3 °F
Warmest sea temperature:
August 74.2 °F
July 74.2 °F
September 68.5 °F
The most cold months:
January 16.2 °F
February 19.0 °F
December 25.0 °F
The most rainy months:
June 5 days
May 5 days
July 5 days
The most windy months:
April 9 mph
March 9 mph
February 9 mph
more details