World Resorts Canada Thunder Bay Weather

Thunder Bay Sea Temperature in March

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

Show year:
2025
2024
2023
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
28
30
32
34
36
38

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.

Monthly sea water temperature 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

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

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 8.7 mph

Thunder Bay on a weather map

Leaflet | Tiles © Esri
Places in Canada:
Name
°F
+50°F
+46°F
+50°F
+39°F
+46°F
+5°F
+48°F
+48°F
+36°F
+48°F
+43°F
+46°F
+39°F
+46°F
24 Hours Forecast
Thunder Bay
Local time: 01:39
April 28, monday
0300
39°F
N
3 mph
0600
39°F
N
2 mph
0900
39°F
NW
2 mph
1200
39°F
W
4 mph
1500
39°F
NW
6 mph
1800
41°F
W
4 mph
2100
43°F
W
3 mph
April 29, tuesday
0000
43°F
S
5 mph
Units of measurement: °C / °F