Flights to Thunder Bay, ON, Canada

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Cheap flights to Thunder Bay

Weather in Thunder Bay

Average Weather

Month	Average monthly max temperature	Average monthly min temperature
January	-8°C	-15°C
February	-7°C	-15°C
March	-1°C	-8°C
April	4°C	-1°C
May	12°C	4°C
June	17°C	9°C
July	21°C	13°C
August	21°C	13°C
September	17°C	10°C
October	9°C	3°C
November	2°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

days per year

14 day forecast

Sunday

31 Aug

22°C15°C

7 Sep

81%

9°C6°C

Monday

1 Sep

20°C15°C

8 Sep

15°C5°C

Tuesday

2 Sep

70%

24°C15°C

9 Sep

16°C8°C

Wednesday

3 Sep

89%

7°C3°C

10 Sep

19°C7°C

Thursday

4 Sep

86%

4°C3°C

11 Sep

21°C10°C

Friday

5 Sep

87%

9°C4°C

12 Sep

23°C11°C

Saturday

6 Sep

85%

8°C5°C

13 Sep

23°C14°C

Cheapest month to fly to Thunder Bay

Explore price trends for trips to Thunder Bay

Showing prices in CAD

Annual Avg. Price	169 CAD
September 2025	91 CAD
October 2025	91 CAD
November 2025	106 CAD
December 2025	106 CAD
January 2026	106 CAD
February 2026	106 CAD
March 2026	165 CAD
April 2026	164 CAD
May 2026	246 CAD
June 2026	294 CAD
July 2026	387 CAD