Yellowknife in september: average Weather, Temperature and Climate
Weather in Yellowknife in september 2025
The weather in Yellowknife in september comes from statistical datas on the last years. You can view the weather statistics the entire month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
bad weather 23.7cm
Weather at 6am
43°F
Clear/Sunny
28% of time
26%
22%
9%
Weather at 12pm
50°F
Clear/Sunny
32% of time
25%
25%
10%
Weather at 6pm
52°F
Clear/Sunny
32% of time
24%
20%
14%
Weather at 3am
45°F
30%
29%
20%
7%
Evolution of daily average temperature and precipitation in Yellowknife in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Yellowknife in september.
The climate of Yellowknife in september is bad
the weather in Yellowknife in september is rather dry (with 1.9in of rainfall over 2 days). This is better than the previous month since in august it receives an average of 3.3in of precipitation over 5 days.
The climate is quite cool here this month, but it is bearable when dressing hot. The thermometer averaged maximum of 52°F. The minimum is 43°F. Thus, the mean temperature average on this month of september in Yellowknife is 49°F. These temperatures are far removed from those records observed in Yellowknife in september with a maximum record of 74°F in 2013 and a minimum record of 25°F in 2018.
In september in Yellowknife, the days on average last 12:56. The sun rises at 06:04 and sunset is at 19:00.
With an unfavorable weather, this month is not the best time to go there.
Yellowknife: another month?
If you can push the dates of your trip to Yellowknife forward, the month of october has a better weather forecast than september. more information
September: another location in Canada?
If you want to go to Canada in september, there are destinations with better weather than Yellowknife:
In september, Ottawa, Halifax, Quebec City, Thunder Bay, Toronto and Vancouver have good weather.
Finally, Calgary, Whistler, Edmonton, Kamloops, Lloydminster and Thompson have a tolerable climate, but better than Yellowknife.
Seasonal average climate and temperature of Yellowknife in september
Check below seasonal norms These datas are set from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 49°F | ||||
| Highest temperature | 52°F | ||||
| Lowest temperature | 43°F | ||||
| Highest record temperature | 74°F (2013) | ||||
| Lowest record temperature | 25°F (2018) | ||||
| Number of days at +65°F | 2 day(s) (7%) | ||||
| Number of days at -32°F | 3 day(s) (10%) | ||||
| Wind | |||||
| Wind speed | 19km/h | ||||
| Wind temperature | 38°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 1.9in | ||||
| Number of days with rainfall | 2 day(s) (8%) | ||||
| Record daily rainfall | 1.4in (2012) | ||||
| Snowfall | 23.7cm | ||||
| Other climate data | |||||
| Humidity | 85% | ||||
| Visibility | 9.17km | ||||
| Cloud cover | 50% | ||||
| UV index | 3 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:04 | ||||
| Time of sunset | 19:00 | ||||
| Length of day | 12:56 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | bad | ||||
How was the weather last september?
Here is the day by day recorded weather in Yellowknife in september 2024:
52°F to 68°F
56°F to 65°F
45°F to 52°F
45°F to 56°F
45°F to 61°F
54°F to 72°F
54°F to 70°F
50°F to 65°F
52°F to 56°F
47°F to 56°F
47°F to 58°F
50°F to 58°F
49°F to 59°F
50°F to 59°F
49°F to 58°F
50°F to 59°F
45°F to 59°F
50°F to 56°F
45°F to 50°F
47°F to 50°F
41°F to 50°F
40°F to 54°F
40°F to 52°F
43°F to 49°F
47°F to 54°F
45°F to 49°F
40°F to 43°F
36°F to 45°F
36°F to 49°F
36°F to 40°F
Map: other cities in Canada in september
Cities near Yellowknife:
| Kugluktuk in september | very bad weather |
| Fort Nelson in september | tolerable weather |
| Fort McMurray in september | tolerable weather |
| Norman Wells in september | very bad weather |
| Fort St. John in september | tolerable weather |
| Grande Prairie in september | tolerable weather |
| Cold Lake in september | tolerable weather |
| Edmonton in september | tolerable weather |
| Lloydminster in september | tolerable weather |
| Prince George in september | tolerable weather |
| Jasper National Park in september | very bad weather |
| Gjoa Haven in september | very bad weather |
Click over cities on the map for information about the weather in september.
Yellowknife
perfect weather
good
tolerable
bad
very bad
Weather data for Yellowknife in september:
Weather data for Yellowknife for september are derived from an average of the weather forecast since 2009 in Yellowknife. There is a margin of error and these forecasts are to be considered as general information only. The weather in Yellowknife can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Yellowknife.