03.30
mon
mon
DAY

32°F
SW 7 mph
precip
0%
0%
NIGHT

24°F
SW 7 mph
precip
0%
0%
03.31
tue
tue
DAY

24°F
W 15 mph
precip
100%
100%
NIGHT

18°F
SW 2 mph
precip
0%
0%
04.01
wed
wed
DAY

22°F
SW 7 mph
precip
0%
0%
NIGHT

18°F
SW 7 mph
precip
0%
0%
04.02
thu
thu
DAY

18°F
W 14 mph
precip
65%
65%
NIGHT

20°F
SW 12 mph
precip
100%
100%
04.03
fri
fri
DAY

26°F
SW 11 mph
precip
63%
63%
NIGHT

26°F
SW 9 mph
precip
100%
100%
04.04
sat
sat
DAY

26°F
SW 9 mph
precip
100%
100%
NIGHT

24°F
SE 12 mph
precip
100%
100%
04.05
sun
sun
DAY

28°F
S 9 mph
precip
0%
0%
NIGHT

14°F
N 1 mph
precip
51%
51%
Weather in
April
April
| Thunder Bay |
14 day weather
forecast
forecast
| Thunder Bay |
Monthly weather
averages
averages
| Thunder Bay |
Sea water
temperature
temperature
| Thunder Bay |
Thunder Bay Sea Water Temperature in March, °F
The average sea surface temperature in March 2026 for Thunder Bay was 0.4°F. The maximum and minimum values were 0.3°F and 0.4°F respectively.
Canada Resorts:
NAME
F°
| Halifax | ![]() |
+28 |
| Moncton | ![]() |
+28 |
| Montreal | ![]() |
+32 |
| Niagara Falls | ![]() |
+34 |
| Ottawa | ![]() |
+30 |
| Prince Edward Island | ![]() |
+28 |
| Quebec | ![]() |
+18 |
| Rocky Harbour | ![]() |
+12 |
| Saint John | ![]() |
+32 |
| St. John's | ![]() |
+16 |
| Sydney | ![]() |
+26 |
| Toronto | ![]() |
+32 |
| Vancouver | ![]() |
+34 |
| Victoria | ![]() |
+32 |
| Winnipeg | ![]() |
+16 |





























