World Resorts Canada Thunder Bay Weather

Thunder Bay sea water temperature

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

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

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.

Best time for vacation in Thunder Bay

Sunniest months:
September 15 days
August 14 days
July 12 days
Warmest months:
July 69.3 °F
August 68.9 °F
June 62.8 °F
Warmest sea temp:
August 63.5 °F
September 60.2 °F
July 59.3 °F
Coldest months:
February 14.2 °F
January 14.8 °F
December 22.5 °F
Rainiest months:
August 3 days
September 2 days
April 2 days
Windiest months:
November 9.6 mph
December 9.1 mph
April 9.1 mph

Thunder Bay on a weather map

Leaflet | Tiles © Esri
Places in Canada:
Name
°F
+54°F
+50°F
+64°F
+41°F
+16°F
+45°F
+45°F
+54°F
+48°F
+50°F
+50°F
+37°F
+45°F
+46°F
24 Hours Forecast
Thunder Bay
Local time: 14:10
April 26, saturday
1500
55°F
N
8 mph
1800
55°F
N
7 mph
2100
43°F
N
5 mph
April 27, sunday
0000
37°F
N
3 mph
0300
30°F
NW
2 mph
0600
30°F
N
3 mph
0900
34°F
N
3 mph
1200
37°F
N
6 mph
Units of measurement: °C / °F