Yellowknife weather in September
Cool, with occasional showers. Average highs of 11°C and lows of 6°C, with around 6 rainy days expected throughout the month.
While September isn't our top-rated month for Yellowknife, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
11°C
Average low
6°C
Rainy days
6 days
Best months to visit
July
What to do in Yellowknife in September
Whatever the weather, Yellowknife rewards curious visitors. Here are some of the best ways to spend your time:
Watch the Aurora Borealis in winter via night skies tours
Fish for pike in Great Slave Lake
Explore nearby tundra and boreal forest
Visit diamond mines and geology museums
Hike trails with views of Great Slave Lake
Experience 24-hour summer daylight in June
What to pack for September
Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.
Browse other months
January
-20C
Cold, and mostly sunny skies.
February
-22C
Cold, and mostly sunny skies.
March
-13C
Cold, and mostly sunny skies.
April
-3C
Cold, and mostly sunny skies.
May
10C
Cool, with occasional showers.
June
18C
Mild and comfortable, with occasional showers.
Recommended
July
21C
Mild and comfortable, with occasional showers.
August
19C
Mild and comfortable, with occasional showers.
September (you are here)
11C
Cool, with occasional showers.
October
2C
Cold, with occasional showers.
November
-9C
Cold, with occasional showers.
December
-18C
Cold, with occasional showers.
Book your September trip to Yellowknife
Find hotels, tours and experiences for the perfect escape.
