Current sea water temperature:
+49.1°F
| Minimum sea water temperature in October: | 63.9°F |
| Maximum sea water temperature in October: | 45.9°F |
| Average sea water temperature in October: | 53.4°F |
| more information | |
14 days
forecast
forecast
| Thunder Bay |
monthly
weather
weather
| Thunder Bay |
Sea water temperature for the last 10 days:
| October 25 | 49.1°F | October 20 | 48.9°F |
| October 24 | 48.4°F | October 19 | 49.8°F |
| October 23 | 48.6°F | October 18 | 51.4°F |
| October 22 | 48.6°F | October 17 | 51.4°F |
| October 21 | 48.6°F | October 16 | 51.8°F |
Monthly sea water temperature, °F
When is the warmest sea in Thunder Bay?
Based on the data about daily sea water temperature for the last three years the warmest sea in Thunder Bay was noticed in August, September and July.
Monthly Sea Temperatures in Thunder Bay, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 61.2°F. The highest and lowest sea temperatures during the month were 63.7°F and 56.3°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 59.6°F. The highest and lowest sea temperatures during the month were 65.5°F and 50.7°F.
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.
current
weather
weather
| Thunder Bay |
weather in
October
October
| Thunder Bay |
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: 20:52
October 25, sunday
2100
48°F
SE
9 mph
9 mph
October 26, monday
0000
45°F
S
11 mph
11 mph
0300
39°F
SE
12 mph
12 mph
0600
36°F
SE
11 mph
11 mph
0900
34°F
S
8 mph
8 mph
1200
37°F
S
8 mph
8 mph
1500
43°F
W
4 mph
4 mph
1800
41°F
NW
5 mph
5 mph
