Measurements:
°C
°F
Yellowknife
-12°F
SE 13 mph
Feels like: -34°F
Precip: 79%
World Resorts Canada Yellowknife Weather May Weather in Yellowknife

Yellowknife Weather: May

Average Day Temperature: 46.0°F
Average Night Temperature: 35.3°F
Sea Water Temperature: 32.1°F
Number of Sunny Days: 11 days
Sunshine Hours: 16.5 - 19.2 hours
Number of Rainy Days: 0 days
Precipitation Totals: 0.3 in

Air Temperature in May, °F

Select Year: 2025 2024 2023

The highest day temperature in May 2025 was 44°F. The lowest night temperature was 8°F. The average values for day and night temperatures during May were 33.4°F и 29.8°F respectivly.

Yellowknife Water Sea Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Yellowknife was 32.7°F. The maximum and minimum values were 30.6°F and 34.8°F respectively.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in May, in

Precipitation total in May for Yellowknife is 0.3 in. This value is relatively stable throughout the year.

Wind Speed in May, mph

The average wind speed in May is 9.9 mph. It makes May one of the most windy months of the year for Yellowknife.

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 May is 9.8 hours.

Best Time to Visit Yellowknife
The most sunny months:
July 14 days
June 13 days
August 12 days
The most warm months:
July 69.3 °F
August 65.7 °F
June 61.4 °F
Warmest sea temperature:
August 61.3 °F
July 59.0 °F
September 55.0 °F
The most cold months:
January -15.3 °F
February -15.2 °F
December -12.0 °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

24 Hours Weather Forecast
Yellowknife
Local time: 23:12
05 dec, friday
0000 -12°F
SE
13 mph
0300 -18°F
SE
10 mph
0600 -22°F
SE
7 mph
0900 -26°F
SE
6 mph
1200 -26°F
SE
6 mph
1500 -26°F
S
5 mph
1800 -30°F
S
6 mph
2100 -30°F
S
6 mph