Average sea water temperature in May:
+40.3°F
| Minimum sea water temperature in May: | 53.2°F |
| Maximum sea water temperature in May: | 34.3°F |
Daily sea water temperature in May, °F
Show year:
2025
2024
2023
The average sea water temperature in May of 2025 was 41.0°F. The highest and lowest sea temperatures during the month were 49.6°F and 36.1°F.
sea water
temperature
temperature
| Thunder Bay |
monthly
weather
weather
| Thunder Bay |
current
weather
weather
| Thunder Bay |
14 days
forecast
forecast
| Thunder Bay |
Monthly sea water temperature in Thunder Bay, °F
Which Canada resorts have warmest sea in May?
| Place name | May 2025 | May 2024 |
|---|---|---|
| Montreal | 56.6°F | 60.4°F |
| Surrey | 56.6°F | 55.1°F |
| North Vancouver | 55.9°F | 54.1°F |
| Vancouver | 55.7°F | 54.1°F |
| Windsor | 55.6°F | 56.7°F |
| Nanaimo | 54.8°F | 53.9°F |
| Tofino | 52.0°F | 51.7°F |
| Victoria | 48.9°F | 49.0°F |
| Niagara Falls | 48.9°F | 54.2°F |
| Niagara-on-the-Lake | 48.1°F | 53.2°F |
| Kingston | 48.0°F | 53.4°F |
| Quebec | 48.0°F | 51.2°F |
| Summerside | 47.2°F | 47.3°F |
| Hamilton | 47.0°F | 51.7°F |
| Lunenburg | 46.2°F | 46.8°F |
| Charlottetown | 45.5°F | 47.1°F |
| Mississauga | 45.3°F | 50.9°F |
| Barrie | 45.2°F | 51.2°F |
| Halifax | 45.2°F | 44.6°F |
| Moncton | 45.0°F | 45.7°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: 17:40
December 17, wednesday
1800
23°F
NW
3 mph
3 mph
2100
25°F
NW
3 mph
3 mph
December 18, thursday
0000
28°F
NW
12 mph
12 mph
0300
30°F
NW
11 mph
11 mph
0600
32°F
NW
9 mph
9 mph
0900
32°F
SW
8 mph
8 mph
1200
23°F
S
18 mph
18 mph
1500
14°F
S
21 mph
21 mph
