Measurements:
°C
°F
Yellowknife
54°F
SE 8 mph
Feels like: 52°F
Precip: 9%
World Resorts Canada Yellowknife Weather August Weather in Yellowknife

Yellowknife Weather: August

Average Day Temperature: 65.7°F
Average Night Temperature: 54.7°F
Sea Water Temperature: 61.3°F
Number of Sunny Days: 12 days
Sunshine Hours: 14.4 - 17.4 hours
Number of Rainy Days: 1 day
Precipitation Totals: 0.5 in

Air Temperature in August, °F

Select Year: 2025 2024 2023

The highest day temperature in August 2025 was 82°F. The lowest night temperature was 47°F. The average values for day and night temperatures during August were 67.7°F и 54.7°F respectivly.

Yellowknife Water Sea Temperature in August, °F

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Yellowknife was 60.7°F. The maximum and minimum values were 53.6°F and 65.6°F respectively.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during August. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in August, in

Precipitation total in August for Yellowknife is 0.5 in. This value is relatively stable throughout the year.

Wind Speed in August, mph

The average wind speed in August is 8.8 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Yellowknife in August is 9.4 hours.

Best Time to Visit Yellowknife
The most sunny months:
June 14 days
July 14 days
August 12 days
The most warm months:
July 69.4 °F
August 65.7 °F
June 62.1 °F
Warmest sea temperature:
August 61.3 °F
July 59.2 °F
September 55.0 °F
The most cold months:
January -15.3 °F
February -15.0 °F
December -13.2 °F
The most rainy months:
June 1 day
July 1 day
August 1 day
The most windy months:
October 10 mph
May 9 mph
September 9 mph

Yellowknife on the Weather Map

Canada Resorts:
NAME
Barrie +58
Halifax +64
Kingston +66
Montreal +66
Ottawa +66
Prince Edward Island +64
Quebec +62
Saint John +64
St. John's +54
Sydney +58
Toronto +62
Vancouver +58
Victoria +56
Winnipeg +76
Yellowknife +54
24 Hours Weather Forecast
Yellowknife
Local time: 03:00
30 jul, thursday
0600 56°F
SE
8 mph
0900 60°F
SE
12 mph
1200 66°F
SE
10 mph
1500 68°F
E
12 mph
1800 72°F
NE
11 mph
2100 62°F
NE
8 mph
31 jul, friday
0000 60°F
NE
6 mph
0300 54°F
N
4 mph