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

Yellowknife Sea Water Temperature

Current Sea Water Temperature:
+62.8°F
Maximum Sea Water Temperature in July: 68.0°F
Minimum Sea Water Temperature in July: 45.0°F
Average water temperature in July: 59.2°F

Sea Water Temperature for the Last 10 Days:

July 30 62.8°F July 25 66.8°F
July 29 62.6°F July 24 66.0°F
July 28 63.0°F July 23 66.8°F
July 27 63.8°F July 22 67.0°F
July 26 65.4°F July 21 66.2°F

When is the Warmest Sea for Yellowknife?

According to our data for the last three years for Yellowknife the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

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.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Yellowknife was 60.9°F. The maximum and minimum values were 51.0°F and 68.0°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Yellowknife was 58.2°F. The maximum and minimum values were 53.4°F and 64.8°F respectively.

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: 03:04
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