26.08
wed
wed
Day
75°F
NE 7 mph
Precip.
7%
7%
Night
66°F
NW 4 mph
Precip.
17%
17%
27.08
thu
thu
Day
79°F
N 11 mph
Precip.
12%
12%
Night
64°F
NE 9 mph
Precip.
15%
15%
28.08
fri
fri
Day
68°F
E 11 mph
Precip.
8%
8%
Night
59°F
SE 2 mph
Precip.
3%
3%
29.08
sat
sat
Day
70°F
NE 7 mph
Precip.
1%
1%
Night
59°F
N 6 mph
Precip.
6%
6%
30.08
sun
sun
Day
64°F
NE 11 mph
Precip.
47%
47%
Night
61°F
SW 7 mph
Precip.
33%
33%
31.08
mon
mon
Day
64°F
SW 4 mph
Precip.
2%
2%
Night
59°F
NW 3 mph
Precip.
18%
18%
01.09
tue
tue
Day
55°F
SW 8 mph
Precip.
51%
51%
Night
55°F
SW 6 mph
Precip.
42%
42%
sea water
temperature
temperature
| Montreal |
monthly
weather
weather
| Montreal |
current
weather
weather
| Montreal |
14 days
forecast
forecast
| Montreal |
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 75.0°F. The highest and lowest sea temperatures during the month were 77.5°F and 72.1°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 66.7°F. The highest and lowest sea temperatures during the month were 69.6°F and 64.2°F.
Air temperature in Montreal, °F
Precipitation total in Montreal, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Montreal
Montreal on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Montreal
Local time: 14:18
August 26, wednesday
1500
77°F
NE
6 mph
6 mph
1800
75°F
N
4 mph
4 mph
2100
70°F
NW
3 mph
3 mph
August 27, thursday
0000
66°F
NW
4 mph
4 mph
0300
63°F
NW
6 mph
6 mph
0600
63°F
NW
6 mph
6 mph
0900
68°F
N
10 mph
10 mph
1200
79°F
N
11 mph
11 mph
