Measurements:
°C
°F
Montreal
46°F
N 7 mph
Feels like: 44°F
Precip: 6%
World Resorts Canada Montreal Weather

7 Day Weather Forecast

10.19
mon
DAY
58°F
NE 12 mph
precip
3%
NIGHT
50°F
SE 4 mph
precip
10%
10.20
tue
DAY
52°F
S 9 mph
precip
2%
NIGHT
42°F
SW 6 mph
precip
6%
10.21
wed
DAY
48°F
SW 6 mph
precip
3%
NIGHT
44°F
NE 3 mph
precip
6%
10.22
thu
DAY
54°F
E 5 mph
precip
13%
NIGHT
42°F
S 5 mph
precip
4%
10.23
fri
DAY
46°F
SW 7 mph
precip
2%
NIGHT
40°F
W 2 mph
precip
8%
10.24
sat
DAY
48°F
N 4 mph
precip
2%
NIGHT
42°F
N 4 mph
precip
6%
10.25
sun
DAY
52°F
N 6 mph
precip
2%
NIGHT
50°F
N 7 mph
precip
17%

Montreal Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Montreal was 14.1°F. The maximum and minimum values were 10.8°F and 16.8°F respectively.

Montreal on the Weather Map

Best Time to Visit Montreal
The most sunny months:
July 14 days
August 14 days
June 13 days
The most warm months:
July 82.6 °F
August 80.2 °F
June 75.5 °F
Warmest sea temperature:
August 74.4 °F
July 74.4 °F
September 68.6 °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