Current sea water temperature:
+75.4°F
| Minimum sea water temperature in August: | 79.7°F |
| Maximum sea water temperature in August: | 32.0°F |
| Average sea water temperature in August: | 71.8°F |
| more information | |
14 days
forecast
forecast
| Montreal |
monthly
weather
weather
| Montreal |
Sea water temperature for the last 10 days:
| August 6 | 75.4°F | August 1 | 75.0°F |
| August 5 | 75.7°F | July 31 | 73.6°F |
| August 4 | 76.3°F | July 30 | 73.6°F |
| August 3 | 75.4°F | July 29 | 73.6°F |
| August 2 | 75.9°F | July 28 | 73.4°F |
Monthly sea water temperature, °F
When is the warmest sea in Montreal?
Based on the data about daily sea water temperature for the last three years the warmest sea in Montreal was noticed in July, August and September.
Monthly Sea Temperatures in Montreal, °F
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 75.0°F. The highest and lowest sea temperatures during the month were 78.1°F and 71.6°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 74.7°F. The highest and lowest sea temperatures during the month were 79.2°F and 68.7°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.
current
weather
weather
| Montreal |
weather in
August
August
| Montreal |
Best time for vacation in Montreal
Montreal on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Montreal
Local time: 10:34
August 06, thursday
1200
82°F
NE
5 mph
5 mph
1500
86°F
NE
6 mph
6 mph
1800
84°F
NE
6 mph
6 mph
2100
75°F
NE
5 mph
5 mph
August 07, friday
0000
73°F
NE
4 mph
4 mph
0300
72°F
NE
5 mph
5 mph
0600
68°F
NE
6 mph
6 mph
0900
75°F
NE
6 mph
6 mph
