Weather in March 2025

Thunder Bay weather in March 2025

°C °F

The average weather in Thunder Bay in March

The weather in Thunder Bay in March is very cold with temperatures between -8°C and -2°C, warm clothes are a must.

You can expect rain for roughly half of the month of March in Thunder Bay. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.

Let it snow! You can expect Thunder Bay to be covered in white during the month of March. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.

Our weather forecast can give you a great sense of what weather to expect in Thunder Bay in March 2025.

If you’re planning to visit Thunder Bay in the near future, we highly recommend that you review the 14 day weather forecast for Thunder Bay before you arrive.

Temperatures
-2° / -8°
Rainy Days
9
Snowy Days
19
Dry Days
5
Rainfall
75
mm
Sun Hours
6.7
Hrs

Explore the weather in Thunder Bay in other months

Thunder Bay annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January -10° / -16° 5 4 23 51 mm
Awful
February -9° / -16° 4 5 20 51 mm
Awful
March -2° / -8° 9 5 19 75 mm
Awful
April 4° / -2° 7 12 12 100 mm
Awful
May 12° / 4° 7 23 2 96 mm
Awful
June 17° / 9° 6 24 0 98 mm
Good
July 21° / 13° 5 26 0 90 mm
Good
August 21° / 13° 4 27 0 87 mm
Good
September 16° / 9° 5 25 0 84 mm
Good
October 8° / 3° 6 20 5 74 mm
Bad
November 1° / -4° 6 10 14 78 mm
Awful
December -6° / -11° 5 6 21 69 mm
Awful

Weather in Thunder Bay in March - FAQ

What is the average temperature in Thunder Bay in March?
The average temperature in Thunder Bay in March is -8/-2° C.
What is the chance of rain in Thunder Bay in March?
On average, there are 9 rainy days in Thunder Bay during March.
Weather wise, is March a good time to visit Thunder Bay?
The weather in Thunder Bay in March is awful.
Can it snow in Thunder Bay in March?
On average, there are 19 snowy days in Thunder Bay in March.
More about the weather in Thunder Bay