Thunder Bay climate guide, Ontario

Welcome to the Thunder Bay climate guide, which shows average weather for Thunder Bay, Ontario, Canada. Check maximum temperature, the number of days with rainfall, sea temperature and daily hours of sunshine for each month of the year.

Thunder Bay climate guide: quick links

Maximum temperature (°C) in Thunder Bay

-0
8
15
20
24
22
17
10
2
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
-9
-6
-6

Days with some rain in Thunder Bay

11
9
10
9
11
13
12
13
13
12
10
12
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Hours of sunshine in Thunder Bay

4
5
5
7
8
9
10
8
5
4
3
3
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sea temperature (°C) in Thunder Bay

2
2
2
2
3
4
7
13
13
8
5
4
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Thunder Bay, Ontario map © Weather2Travel.com
Thunder Bay, Ontario map © Weather2Travel.com
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The Thunder Bay climate guide is provided by Weather2Travel.com. For more information about the weather in Thunder Bay, Ontario, Canada including monthly rainfall, mininum temperature, UV maximum, heat & humidity and daylight hours visit the Thunder Bay climate guide page.

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