Measurements:
°C
°F
CURRENT WEATHER
18:45
Thunder Bay
20°F
NE 6 mph
Feels like: 14°F
Precip: 0%
World Resorts Canada Thunder Bay Weather

7 Day Weather Forecast

01.11
sun
DAY
4°F
SE 5 mph
precip
0%
NIGHT
22°F
NE 9 mph
precip
100%
01.12
mon
DAY
26°F
E 8 mph
precip
0%
NIGHT
24°F
NE 2 mph
precip
0%
01.13
tue
DAY
30°F
E 8 mph
precip
100%
NIGHT
10°F
S 20 mph
precip
100%
01.14
wed
DAY
-4°F
S 16 mph
precip
0%
NIGHT
-8°F
SE 4 mph
precip
0%
01.15
thu
DAY
0°F
NE 4 mph
precip
0%
NIGHT
8°F
E 3 mph
precip
0%
01.16
fri
DAY
14°F
SW 1 mph
precip
100%
NIGHT
18°F
SE 6 mph
precip
100%
01.17
sat
DAY
-10°F
SE 14 mph
precip
0%
NIGHT
-6°F
E 6 mph
precip
22%

Thunder Bay Sea Water Temperature in January, °F

Select Year: 2025 2024 2023

The average sea surface temperature in January 2025 for Thunder Bay was 1.7°F. The maximum and minimum values were 1.1°F and 2.4°F respectively.

Thunder Bay on the Weather Map

Best Time to Visit Thunder Bay
The most sunny months:
September 14 days
August 14 days
July 12 days
The most warm months:
July 71.5 °F
August 71.2 °F
June 64.4 °F
Warmest sea temperature:
August 64.9 °F
September 61.3 °F
July 60.6 °F
The most cold months:
February 10.3 °F
January 10.9 °F
December 17.9 °F
The most rainy months:
September 2 days
August 2 days
April 2 days
The most windy months:
November 9 mph
December 9 mph
April 9 mph
more details