Weather in September 2025

Yellowknife weather in September 2025

The temperatures in Yellowknife in September are quite cold with temperatures between 5°C and 11°C, warm clothes are a must.

You can expect about 3 to 8 days of rain in Yellowknife during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Please note that Yellowknife can expect a few days of snow in September.

Our weather forecast can give you a great sense of what weather to expect in Yellowknife in September 2025.

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

Temperatures
Temperatures
11° / 5°
Rainy Days
Rainy Days
5
Snowy Days
Snowy Days
2
Dry Days
Dry Days
23
Rainfall
Rainfall
47
mm
8.1
Sun Hours
8.1
Hrs

Yellowknife annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January -20° / -26° 1 9 21 22 mm
Awful
February -19° / -26° 1 10 18 14 mm
Awful
March -12° / -19° 2 8 21 23 mm
Awful
April -3° / -10° 3 10 17 23 mm
Awful
May 10° / 1° 3 23 5 32 mm
Bad
June 18° / 9° 4 26 0 47 mm
Good
July 20° / 12° 5 26 0 60 mm
Good
August 18° / 10° 5 26 0 78 mm
Good
September 11° / 5° 5 23 2 47 mm
Bad
October 1° / -2° 4 11 16 42 mm
Awful
November -10° / -14° 2 6 22 33 mm
Awful
December -18° / -23° 1 8 22 24 mm
Awful
Temperatures in Yellowknife in September
Rain in Yellowknife in September

Recommended Hotels in Yellowknife

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That’s why we run our special tools and found the best hotels in Yellowknife. Click on hotel for more details.

Weather in Yellowknife in September - FAQ

What is the average temperature in Yellowknife in September?
The average temperature in Yellowknife in September is 5/11° C.
What is the chance of rain in Yellowknife in September?
On average, there are 5 rainy days in Yellowknife during September.
Weather wise, is September a good time to visit Yellowknife?
The weather in Yellowknife in September is bad.
Can it snow in Yellowknife in September?
On average, there are 2 snowy days in Yellowknife in September.
More about the weather in Yellowknife