Flights to Thunder Bay, ON, Canada

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Weather in Thunder Bay

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January-8°C-15°C
February-7°C-15°C
March-1°C-8°C
April4°C-1°C
May12°C4°C
June17°C9°C
July21°C13°C
August21°C13°C
September17°C10°C
October9°C3°C
November2°C-3°C
December-4°C-10°C
Hottest Month
21°C
July
Coldest month
-15°C
January
Sunny days
247
days per year
Snow days
31
days per year

14 day forecast

Sunday
20 Apr
8°C-4°C
27 Apr
10°C1°C
Monday
21 Apr
83%
3°C-2°C
28 Apr
71%
7°C3°C
Tuesday
22 Apr
7°C1°C
29 Apr
75%
10°C3°C
Wednesday
23 Apr
89%
9°C1°C
30 Apr
10°C3°C
Thursday
24 Apr
81%
4°C2°C
1 May
88%
7°C2°C
Friday
25 Apr
5°C1°C
2 May
10°C2°C
Saturday
26 Apr
5°C1°C
3 May
14°C4°C

Cheapest month to fly to Thunder Bay

Explore price trends for trips to Thunder Bay

Annual Avg. Price211 CAD
May 2025108 CAD
June 202593 CAD
July 2025124 CAD
August 2025156 CAD
September 2025140 CAD
October 2025126 CAD
November 2025200 CAD
December 2025200 CAD
January 2026200 CAD
February 2026200 CAD
March 2026200 CAD
April 2026790 CAD
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