Yellowknife
September
Weather in Yellowknife for September 2027
Your guide to Yellowknife weather in September - trends and predictions
In general, the average temperature in Yellowknife at the beginning of September is 15.2 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 8.6 °C by the end of September.
Yellowknife experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 23.8 mm.
Is September a good time to visit Yellowknife? check out the best time to travel to Yellowknife page.
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Temperatures
Rain 🌧️
More
24
Dry days
6
Rainy days
0
Snow days
13°/7°
Temperatures
23 km/h
Avg max wind
67 %
Avg humidity
Yellowknife Weather September
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Temperatures trend during September in Yellowknife
See the weather trend as well as the moving average line
September weather in Yellowknife day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 18° /9° | 0.8 mm | 3.3 | |
| 2 Sept. | Patchy rain possible | 17° /9° | 1 mm | 3 | |
| 3 Sept. |  Overcast | 15° /8° | 0.2 mm | 3 | |
| 4 Sept. | Overcast | 12° /5° | 0 mm | 3 | |
| 5 Sept. | Overcast | 13° /5° | 0.5 mm | 3 | |
| 6 Sept. | Overcast | 17° /8° | 0.1 mm | 2.9 | |
| 7 Sept. |  Cloudy | 17° /9° | 0 mm | 2.9 | |
| 8 Sept. | Overcast | 16° /8° | 0.2 mm | 2.8 | |
| 9 Sept. |  Light rain | 16° /9° | 6.5 mm | 2.7 | |
| 10 Sept. | Patchy rain possible | 15° /8° | 1.5 mm | 2.6 | |
| 11 Sept. |  Sunny | 15° /8° | 0.1 mm | 2.6 | |
| 12 Sept. | Patchy rain possible | 17° /10° | 0.7 mm | 2.5 | |
| 13 Sept. | Overcast | 17° /10° | 0.4 mm | 2.4 | |
| 14 Sept. | Patchy rain possible | 15° /9° | 0.1 mm | 2.4 | |
| 15 Sept. | Patchy rain possible | 13° /7° | 1.2 mm | 2.3 | |
| 16 Sept. |  Partly cloudy | 13° /7° | 0.2 mm | 2.2 | |
| 17 Sept. | Patchy rain possible | 15° /8° | 1.8 mm | 2.2 | |
| 18 Sept. | Patchy rain possible | 15° /9° | 2.2 mm | 2.1 | |
| 19 Sept. | Light drizzle | 13° /7° | 0.3 mm | 2 | |
| 20 Sept. | Overcast | 13° /7° | 0 mm | 2 | |
| 21 Sept. | Overcast | 15° /9° | 0 mm | 1.9 | |
| 22 Sept. | Partly cloudy | 13° /7° | 0 mm | 1.8 | |
| 23 Sept. | Sunny | 13° /7° | 0.6 mm | 1.8 | |
| 24 Sept. | Patchy rain possible | 12° /6° | 1.7 mm | 1.7 | |
| 25 Sept. | Patchy rain possible | 11° /5° | 0.5 mm | 1.7 | |
| 26 Sept. | Patchy rain possible | 9° /4° | 2.3 mm | 1.6 | |
| 27 Sept. | Patchy rain possible | 7° /3° | 0.3 mm | 1.5 | |
| 28 Sept. | Overcast | 7° /2° | 0 mm | 1.5 | |
| 29 Sept. | Patchy rain possible | 8° /2° | 0.3 mm | 1.4 | |
| 30 Sept. | Overcast | 7° /2° | 0.4 mm | 1.4 | |
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Important Notice
Our weather forecast for Yellowknife in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Yellowknife forecast closer to your planned date for the most up-to-date weather information.
Change Month
Yellowknife in September - FAQ
What are the expected maximum and minimum temperatures in Yellowknife during September?
During September, expect a variety of temperatures with highs around 13° and lows near 7°, suitable for diverse activities and preferences.
How much rainfall should be expected in Yellowknife during September?
In September, Yellowknife can expect light to moderate rainfall, totaling 23.8 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Yellowknife in September 2027?
Yellowknife typically sees 0 cm of snowfall during September.
What are the typical wind conditions in Yellowknife during September?
The average wind speed in Yellowknife during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Yellowknife
Explore the daily rainfall trends and prepare for Yellowknifes September weather 💧
Typically, Yellowknife has 6 rainy days in September with a total of 23.8 mm of rainfall.
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