Yellowknife weather in September (Northwest Territories, Canada)

Curious about the September weather in Yellowknife? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In September, Yellowknife typically experiences moderate temperatures and moderate rainfall. Anticipate daytime temperatures around 12°C, while night temperatures can drop to 5°C.

Yellowknife in September usually receives moderate rainfall, averaging around 48 mm for the month. Rain is expected on roughly 10 days.

The area enjoys a balanced 157 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

If you prefer dry days with pleasant temperatures, July typically offers the best circumstances. While January, February, March, April, October, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Yellowknife climate page with graphs.

 

Yellowknife, monthly averages in September

Min Temperature 5°C  

Max Temperature 12°C  

Chance of Rain 32%  

Precipitation 48 mm  

Rainy days 10 days  

Humidity 64%  

Sunshine 157 hours  

Percentage Sunshine 40%  

Where to go in Canada in September

Find out more about the weather in Canada in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Yellowknife in September?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

5/10

Outdoor sports

6/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Yellowknife.

Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.