Yellowknife weather in August 2025

Expect 64°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Yellowknife in August. Check more long-term weather averages for Yellowknife in August before you book your next holiday to Northwest Territories in 2025/2026.

  • 64°F maximum daytime temperature in August in Yellowknife64
    64°F max day temperature
  • 9 hours of sunshine per day
  • 10 days with some rainfall in August in Yellowknife10
    10 days with some rainfall
  • 50°F minimum night-time temperature in August in Yellowknife50
    50°F min night temperature
  • 16 hours of daylight per day in August in Yellowknife16
    16 hours of daylight per day
  • No heat & humidity in August in Yellowknife0
    No heat & humidity
  • 1.7 inches monthly rainfall in August in Yellowknife1.7
    1.7 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in Yellowknife4
    4 (Moderate) UV index

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The August weather guide for Northwest Territories (Yellowknife) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Yellowknife in August?

Daytime temperatures usually reach 64°F in Yellowknife in August, falling to 50°F at night.

How sunny is it in Yellowknife in August?

There are normally 9 hours of bright sunshine each day in Yellowknife in August - that's 56% of daylight hours.

Does it rain in Yellowknife in August?

There are usually 10 days with some rain in Yellowknife in August and the average monthly rainfall is 1.7 inches.

Yellowknife August sunrise & sunset times

Browse the sunrise and sunset times for Yellowknife in August 2025. Select a month to view Yellowknife sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:01 21:24
Saturday, 16th August 2025 04:43 20:38
Sunday, 31st August 2025 05:24 19:50

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