The highest day temperature in July 2025 was 83°F. The lowest night temperature was 41°F. The average values for day and night temperatures during July were 64.3°F и 52.6°F respectivly.

The average sea surface temperature in July 2025 for Yellowknife was 56.2°F. The maximum and minimum values were 52.6°F and 59.4°F respectively.

Most of the days in July are sunny but you can also expect cloudy and gloomy days.

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

The average wind speed in July is 8.6 mph.

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 July is 11.5 hours.