At this moment warmest sea in Canada was observed in the following locations: Barrie, Montreal, Kingston.
You can find the full list of Canada marine locations in the table below. It shows current sea temperature values and averages for current and upcoming months.
| Place name | Current sea temp |
August 2025 | September 2025 |
|---|---|---|---|
| Barrie | 72.3°F | 72.6°F | 66.4°F |
| Montreal | 72.1°F | 74.7°F | 66.7°F |
| Kingston | 71.8°F | 73.2°F | 67.2°F |
| Quebec | 71.4°F | 73.1°F | 65.9°F |
| Windsor | 71.4°F | 74.3°F | 68.5°F |
| Niagara-on-the-Lake | 71.4°F | 74.7°F | 67.8°F |
| Summerside | 71.2°F | 70.2°F | 66.2°F |
| Hamilton | 71.2°F | 73.8°F | 66.3°F |
| Sydney | 70.0°F | 67.5°F | 64.8°F |
| Toronto | 69.6°F | 73.2°F | 65.1°F |
| Mississauga | 69.1°F | 73.4°F | 65.6°F |
| Niagara Falls | 69.1°F | 72.9°F | 66.4°F |
| Charlottetown | 68.9°F | 68.9°F | 65.8°F |
| Gimli | 68.7°F | 68.6°F | 63.6°F |
| Prince Edward Island | 68.5°F | 67.9°F | 65.0°F |
| Winnipeg | 67.8°F | 69.0°F | 64.2°F |
| Halifax | 67.5°F | 63.9°F | 65.2°F |
| Lunenburg | 67.5°F | 64.0°F | 65.4°F |
| Les Iles-de-la-Madeleine | 67.3°F | 65.4°F | 63.3°F |
| Oshawa | 66.4°F | 73.1°F | 65.2°F |
| Moncton | 65.8°F | 64.0°F | 62.1°F |
| Surrey | 65.3°F | 65.2°F | 62.4°F |
| Corner Brook | 64.8°F | 64.6°F | 61.5°F |
| Nanaimo | 64.6°F | 64.7°F | 61.8°F |
| Twillingate Island | 64.2°F | 60.1°F | 56.9°F |
| North Vancouver | 63.9°F | 65.0°F | 61.9°F |
| Rocky Harbour | 63.7°F | 63.1°F | 60.8°F |
| Vancouver | 63.5°F | 64.9°F | 61.7°F |
| Thunder Bay | 61.3°F | 63.2°F | 59.9°F |
| Bonavista | 60.6°F | 58.6°F | 55.7°F |
| Trinity | 60.4°F | 56.5°F | 55.5°F |
| St. John's | 59.7°F | 57.9°F | 56.1°F |
| Tofino | 59.2°F | 56.9°F | 58.3°F |
| Saint John | 58.5°F | 59.5°F | 58.5°F |
| Saint Andrews | 56.8°F | 59.1°F | 58.2°F |
| Victoria | 55.4°F | 53.1°F | 53.0°F |
| Yellowknife | 54.0°F | 59.6°F | 57.4°F |
Charts below show average sea water temperature for Canada resorts with the warmest sea.
You can also check other months of the year to see sea temperature of Canada resorts at that time.
Places in Canada:
Name
°F
