Cool
Average highs are around 10°C, so pack for cooler days.
September verdict
Yellowknife, Canada in September
Weather score35Poor
Poor for holiday weather
Average highs are around 10°C, so pack for cooler days. Sunshine averages 5h per day, enough for a balanced month. Rainfall averages 29mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
10°C
Rain
29mm
Sun
5h
Weather score
35
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 29mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 5h per day, enough for a balanced month.
Map
Weather map
Compare Yellowknife, Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September10°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
September29mm average rain
September sits near Yellowknife's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
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
September5 hours average sun
September sits close to Yellowknife's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to July
This stretch has the strongest sunshine in the monthly averages.
Weather score
September35 weather score
September scores below Yellowknife's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJune to July
These months have the strongest weather score in the monthly averages.