Average sea water temperature in July:
+58.5°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:
2026
2025
2024
The average sea water temperature in July of 2026 was 51.8°F. The highest and lowest sea temperatures during the month were 60.1°F and 44.8°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 2026 | July 2025 |
|---|---|---|
| Windsor | 75.4°F | 75.4°F |
| Montreal | 75.0°F | 75.8°F |
| Winnipeg | 73.5°F | 70.7°F |
| Niagara-on-the-Lake | 72.8°F | 74.3°F |
| Kingston | 71.6°F | 72.3°F |
| Barrie | 71.6°F | 70.7°F |
| Niagara Falls | 71.6°F | 72.5°F |
| Quebec | 71.2°F | 69.7°F |
| Gimli | 71.2°F | 69.7°F |
| Summerside | 67.4°F | 68.7°F |
| Hamilton | 67.2°F | 70.6°F |
| Charlottetown | 65.4°F | 66.1°F |
| Mississauga | 65.2°F | 68.7°F |
| Toronto | 65.0°F | 68.5°F |
| Prince Edward Island | 64.7°F | 66.5°F |
| North Vancouver | 64.0°F | 65.1°F |
| Vancouver | 63.8°F | 64.9°F |
| Surrey | 63.7°F | 65.4°F |
| Nanaimo | 63.3°F | 64.8°F |
| Oshawa | 62.9°F | 67.1°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: 17:01
October 05, monday
1800
48°F
N
12 mph
12 mph
2100
46°F
N
9 mph
9 mph
October 06, tuesday
0000
46°F
N
9 mph
9 mph
0300
48°F
N
12 mph
12 mph
0600
50°F
NW
11 mph
11 mph
0900
52°F
N
13 mph
13 mph
1200
55°F
N
14 mph
14 mph
1500
59°F
NE
14 mph
14 mph
