In July warmest sea in Canada is usually observed in the following locations: Montreal, Windsor, Niagara-on-the-Lake.
Table below shows the average sea water temperature for marine resorts of Canada in July for the last three years.
| Place name | July 2025 | July 2024 | July 2023 |
|---|---|---|---|
| Montreal | 75.8°F | 75.3°F | 75.7°F |
| Windsor | 75.4°F | 73.1°F | 72.6°F |
| Niagara-on-the-Lake | 74.3°F | 73.2°F | 72.8°F |
| Niagara Falls | 72.5°F | 71.4°F | 70.4°F |
| Kingston | 72.3°F | 72.2°F | 72.4°F |
| Winnipeg | 70.7°F | 70.8°F | 69.3°F |
| Barrie | 70.7°F | 68.9°F | 70.6°F |
| Hamilton | 70.6°F | 68.6°F | 70.5°F |
| Quebec | 69.7°F | 72.2°F | 71.0°F |
| Gimli | 69.7°F | 69.1°F | 68.2°F |
| Summerside | 68.7°F | 69.6°F | 69.0°F |
| Mississauga | 68.7°F | 67.6°F | 69.3°F |
| Toronto | 68.5°F | 68.1°F | 69.3°F |
| Oshawa | 67.1°F | 67.0°F | 68.5°F |
| Prince Edward Island | 66.5°F | 68.0°F | 67.1°F |
| Charlottetown | 66.1°F | 66.8°F | 68.2°F |
| Surrey | 65.4°F | 66.2°F | 65.2°F |
| North Vancouver | 65.1°F | 64.9°F | 65.1°F |
| Vancouver | 64.9°F | 64.7°F | 64.9°F |
| Nanaimo | 64.8°F | 65.2°F | 64.4°F |
| Sydney | 63.7°F | 63.8°F | 63.2°F |
| Moncton | 61.3°F | 62.4°F | 61.9°F |
| Les Iles-de-la-Madeleine | 61.1°F | 63.7°F | 62.4°F |
| Thunder Bay | 61.1°F | 60.8°F | 51.3°F |
| Corner Brook | 61.1°F | 63.7°F | 59.3°F |
| Lunenburg | 59.6°F | 58.1°F | 63.5°F |
| Rocky Harbour | 59.4°F | 61.5°F | 60.7°F |
| Halifax | 58.9°F | 57.6°F | 64.2°F |
| Twillingate Island | 57.5°F | 62.1°F | 58.1°F |
| Saint Andrews | 57.2°F | 58.1°F | 59.3°F |
| Tofino | 55.8°F | 55.6°F | 55.3°F |
| Yellowknife | 55.6°F | 59.3°F | 62.1°F |
| Saint John | 55.5°F | 58.7°F | 58.6°F |
| Bonavista | 54.6°F | 59.1°F | 55.2°F |
| St. John's | 53.0°F | 54.6°F | 52.1°F |
| Victoria | 52.2°F | 52.6°F | 52.2°F |
| Trinity | 52.0°F | 55.1°F | 50.8°F |
Charts below show average sea water temperature for Canada resorts with the warmest sea in July.
You can also check other months of the year to see sea temperature of Canada resorts at that time.
Places in Canada:
Name
°F
