Average sea water temperature in March:
+33.0°F
Minimum sea water temperature in March: | 34.0°F |
Maximum sea water temperature in March: | 32.4°F |
Daily sea water temperature in March, °F
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The average sea water temperature in March of 2025 was 33.1°F. The highest and lowest sea temperatures during the month were 33.8°F and 32.4°F.
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Thunder Bay |
monthly
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Thunder Bay |
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Thunder Bay |
14 days
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Thunder Bay |
Monthly sea water temperature in Thunder Bay, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
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30
40
50
60
70
80
38.6
45.1
53.3
60.2
63.4
59.3
47
40.2
34.6
33
33.4
34.5
Which Canada resorts have warmest sea in March?
Place name | March 2025 | March 2024 |
---|---|---|
Tofino | 46.4°F | 47.6°F |
Surrey | 46.4°F | 47.0°F |
Nanaimo | 46.3°F | 46.1°F |
Victoria | 45.9°F | 46.9°F |
North Vancouver | 45.7°F | 46.4°F |
Vancouver | 45.7°F | 46.3°F |
Windsor | 37.4°F | 39.1°F |
Hamilton | 37.2°F | 38.1°F |
Oshawa | 36.8°F | 38.8°F |
Kingston | 36.5°F | 37.3°F |
Mississauga | 36.4°F | 38.3°F |
Niagara-on-the-Lake | 36.2°F | 38.2°F |
Toronto | 36.1°F | 38.5°F |
Saint John | 36.1°F | 36.7°F |
Saint Andrews | 36.0°F | 37.6°F |
Halifax | 35.7°F | 35.5°F |
Lunenburg | 35.2°F | 35.5°F |
Niagara Falls | 34.2°F | 34.1°F |
Thunder Bay | 33.1°F | 33.1°F |
St. John's | 32.6°F | 31.7°F |
Best time for vacation in Thunder Bay
Thunder Bay on a weather map
Leaflet | Tiles © Esri
Places in Canada:
Name
°F
24 Hours Forecast
Thunder Bay
Local time: 01:39
April 28, monday
0300

39°F
N
3 mph
3 mph
0600

39°F
N
2 mph
2 mph
0900

39°F
NW
2 mph
2 mph
1200

39°F
W
4 mph
4 mph
1500

39°F
NW
6 mph
6 mph
1800

41°F
W
4 mph
4 mph
2100

43°F
W
3 mph
3 mph
April 29, tuesday
0000

43°F
S
5 mph
5 mph