Current Sea Water Temperature:
+31.8°F
| Maximum Sea Water Temperature in March: | 38.0°F |
| Minimum Sea Water Temperature in March: | 29.2°F |
| Average water temperature in March: | 31.1°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| March 29 | 31.8°F | March 24 | 31.0°F |
| March 28 | 31.8°F | March 23 | 31.0°F |
| March 27 | 31.6°F | March 22 | 31.0°F |
| March 26 | 31.4°F | March 21 | 31.0°F |
| March 25 | 31.2°F | March 20 | 31.0°F |
When is the Warmest Sea for Montreal?
According to our data for the last three years for Montreal the highest average sea water temperature was in July, August and September.
Average Water Temperature by Month, °F
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Montreal was 78.7°F. The maximum and minimum values were 74.2°F and 82.4°F respectively.
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Montreal was 77.4°F. The maximum and minimum values were 70.8°F and 82.4°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Montreal was 68.6°F. The maximum and minimum values were 65.8°F and 71.8°F respectively.
Canada Resorts:
NAME
F°
| Halifax |  |
+28 |
| Moncton | |
+28 |
| Montreal | |
+32 |
| Niagara Falls | |
+34 |
| Ottawa | |
+30 |
| Prince Edward Island |  |
+26 |
| Quebec | |
+18 |
| Rocky Harbour | |
+10 |
| Saint John |  |
+30 |
| St. John's | |
+18 |
| Sydney | |
+26 |
| Toronto | |
+34 |
| Vancouver | |
+36 |
| Victoria | |
+32 |
| Winnipeg | |
+18 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Montreal
Local time: 03:13
30 mar, monday
| 0600 |  |
32°F | N 5 mph |
| 0900 |  |
40°F | NE 7 mph |
| 1200 | |
50°F | E 12 mph |
| 1500 |  |
52°F | E 14 mph |
| 1800 | |
46°F | E 8 mph |
| 2100 | |
42°F | S 7 mph |
31 mar, tuesday
| 0000 | |
38°F | S 4 mph |
| 0300 | |
36°F | SW 6 mph |