Best time to visit Thunder Bay

Q: When is the best time to visit Thunder Bay?

The best time to visit Thunder Bay is July based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Q: Which is the hottest month in Thunder Bay?

The hottest time of year in Thunder Bay is normally July. Expect maximum daytime temperatures to reach 24°C.

Q: Which month has the most rain in Thunder Bay?

In terms of rainfall, August is usually the wettest month in Thunder Bay with 88mm on average. There are normally 13 days in August with some rain.

Q: When is it sunniest in Thunder Bay?

The sunniest time of year in Thunder Bay is normally July with bright sunshine on average for 61% of daylight hours; that's 10 hours of sunshine per day.

Q: When is the sea warmest in Thunder Bay?

The sea is usually at its warmest in Thunder Bay in August when the water temperature reaches 13°C.

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Thunder Bay by month

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When is the best time to visit Thunder Bay?

The best time to visit Thunder Bay is July based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0.5
Jan
1
Feb
1
Mar
1.5
Apr
2
May
4
Jun
5
Jul
4
Aug
1.5
Sep
0.5
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

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

Hours of Sunshine (daily)

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

Which is the hottest month in Thunder Bay?

The hottest time of year in Thunder Bay is normally July. Expect maximum daytime temperatures to reach 24°C.

Which month has the most rain in Thunder Bay?

In terms of rainfall, August is usually the wettest month in Thunder Bay with 88mm on average. There are normally 13 days in August with some rain.

When is it sunniest in Thunder Bay?

The sunniest time of year in Thunder Bay is normally July with bright sunshine on average for 61% of daylight hours; that's 10 hours of sunshine per day.

When is the sea warmest in Thunder Bay?

The sea is usually at its warmest in Thunder Bay in August when the water temperature reaches 13°C.