Average sea water temperature in July:
+59.6°F
| Minimum sea water temperature in July: | 67.6°F |
| Maximum sea water temperature in July: | 41.4°F |
Daily sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 61.1°F. The highest and lowest sea temperatures during the month were 64.9°F and 55.2°F.
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| Thunder Bay |
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Monthly sea water temperature in Thunder Bay, °F
Which Canada resorts have warmest sea in July?
| Place name | July 2025 | July 2024 |
|---|---|---|
| Montreal | 75.8°F | 75.3°F |
| Windsor | 75.4°F | 73.1°F |
| Niagara-on-the-Lake | 74.3°F | 73.2°F |
| Niagara Falls | 72.5°F | 71.4°F |
| Kingston | 72.3°F | 72.2°F |
| Winnipeg | 70.7°F | 70.8°F |
| Barrie | 70.7°F | 68.9°F |
| Hamilton | 70.6°F | 68.6°F |
| Quebec | 69.7°F | 72.2°F |
| Gimli | 69.7°F | 69.1°F |
| Mississauga | 68.7°F | 67.6°F |
| Summerside | 68.7°F | 69.6°F |
| Toronto | 68.5°F | 68.1°F |
| Oshawa | 67.1°F | 67.0°F |
| Prince Edward Island | 66.5°F | 68.0°F |
| Charlottetown | 66.1°F | 66.8°F |
| Surrey | 65.4°F | 66.2°F |
| North Vancouver | 65.1°F | 64.9°F |
| Vancouver | 64.9°F | 64.7°F |
| Nanaimo | 64.8°F | 65.2°F |
Best time for vacation in Thunder Bay
Thunder Bay on a weather map
Places in Canada:
Name
°F
24 Hours Forecast
Thunder Bay
Local time: 13:55
December 28, sunday
1500
23°F
S
8 mph
8 mph
1800
21°F
S
12 mph
12 mph
2100
16°F
S
17 mph
17 mph
December 29, monday
0000
14°F
S
21 mph
21 mph
0300
10°F
S
24 mph
24 mph
0600
5°F
S
24 mph
24 mph
0900
3°F
S
23 mph
23 mph
1200
7°F
S
21 mph
21 mph
