Average sea water temperature in April:
+34.6°F
| Minimum sea water temperature in April: | 38.7°F |
| Maximum sea water temperature in April: | 32.5°F |
Daily sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 34.4°F. The highest and lowest sea temperatures during the month were 38.5°F and 32.7°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 April?
| Place name | April 2025 | April 2024 |
|---|---|---|
| Surrey | 51.4°F | 50.4°F |
| Nanaimo | 49.8°F | 49.1°F |
| Tofino | 49.5°F | 49.7°F |
| North Vancouver | 49.4°F | 49.2°F |
| Vancouver | 49.3°F | 49.1°F |
| Victoria | 47.5°F | 48.0°F |
| Windsor | 44.0°F | 46.2°F |
| Oshawa | 39.6°F | 40.9°F |
| Montreal | 39.5°F | 42.8°F |
| Hamilton | 39.4°F | 40.8°F |
| Mississauga | 39.2°F | 41.2°F |
| Saint Andrews | 39.0°F | 41.0°F |
| Kingston | 38.8°F | 40.9°F |
| Toronto | 38.8°F | 40.8°F |
| Lunenburg | 38.5°F | 40.1°F |
| Niagara-on-the-Lake | 37.8°F | 41.6°F |
| Niagara Falls | 37.8°F | 39.8°F |
| Halifax | 37.5°F | 39.3°F |
| Summerside | 37.2°F | 39.3°F |
| Saint John | 37.1°F | 39.2°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: 00:57
December 28, sunday
0300
32°F
SE
2 mph
2 mph
0600
30°F
SE
2 mph
2 mph
0900
32°F
S
4 mph
4 mph
1200
32°F
S
7 mph
7 mph
1500
27°F
S
9 mph
9 mph
1800
23°F
S
15 mph
15 mph
2100
18°F
S
19 mph
19 mph
December 29, monday
0000
14°F
S
22 mph
22 mph
