Cool
Average highs are around 18°C, so pack for cooler days.
Weather Guide
Yellowknife, Canada Average Monthly Weather
Weather score41Mixed annual avg
Best months: July, June, August
Across the year, average daytime temperatures are around -1°C, sunshine averages 6h per day, and rainfall totals about 274mm.
Annual weather
Annual averages
Temp
-1°C
Rain
274mm
Annual total
Sun
6h
Weather score
41
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 42mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.9h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Yellowknife, Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August18°C average high
August is one of Yellowknife's hottest months, so shade and slower afternoons matter.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
August42mm average rain
August is one of Yellowknife's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to July and September to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August8.9 hours average sun
August is brighter than Yellowknife's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to July
This stretch has the strongest sunshine in the monthly averages.
Weather score
August55 weather score
August scores above Yellowknife's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to July
These months have the strongest weather score in the monthly averages.