Current sea water temperature:
+38.5°F
Minimum sea water temperature in April: | 38.7°F |
Maximum sea water temperature in April: | 32.5°F |
Average sea water temperature in April: | 34.6°F |
more information |
14 days
forecast
forecast
Thunder Bay |
monthly
weather
weather
Thunder Bay |
Sea water temperature for the last 10 days:
April 26 | 38.5°F | April 21 | 34.9°F |
April 25 | 36.0°F | April 20 | 33.8°F |
April 24 | 35.8°F | April 19 | 33.6°F |
April 23 | 35.6°F | April 18 | 33.6°F |
April 22 | 34.9°F | April 17 | 34.5°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
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
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
Sea water temperature in August, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
52
56
60
64
68
72
76
The average sea water temperature in August of 2024 was 66.4°F. The highest and lowest sea temperatures during the month were 69.6°F and 64.6°F.
Sea water temperature in September, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
51
54
57
60
63
66
69
72
The average sea water temperature in September of 2024 was 63.7°F. The highest and lowest sea temperatures during the month were 65.8°F and 61.2°F.
Sea water temperature in July, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
37
42
47
52
57
62
67
72
The average sea water temperature in July of 2024 was 60.8°F. The highest and lowest sea temperatures during the month were 65.7°F and 54.0°F.
current
weather
weather
Thunder Bay |
weather in
April
April
Thunder Bay |
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: 14:10
April 26, saturday
1500

55°F
N
8 mph
8 mph
1800

55°F
N
7 mph
7 mph
2100

43°F
N
5 mph
5 mph
April 27, sunday
0000

37°F
N
3 mph
3 mph
0300

30°F
NW
2 mph
2 mph
0600

30°F
N
3 mph
3 mph
0900

34°F
N
3 mph
3 mph
1200

37°F
N
6 mph
6 mph