Northwest Territories weather in August 2025

Expect 18°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Northwest Territories in August. Check more long-term weather averages for Northwest Territories in August before you book your next holiday to Northwest Territories in 2025/2026.

  • 18°C maximum daytime temperature in August in Northwest Territories (Yellowknife)18
    18°C max day temperature
  • 9 hours of sunshine per day
  • 10 days with some rainfall in August in Northwest Territories (Yellowknife)10
    10 days with some rainfall
  • 10°C minimum night-time temperature in August in Northwest Territories (Yellowknife)10
    10°C min night temperature
  • 16 hours of daylight per day in August in Northwest Territories (Yellowknife)16
    16 hours of daylight per day
  • No heat & humidity in August in Northwest Territories (Yellowknife)0
    No heat & humidity
  • 42 mm monthly rainfall in August in Northwest Territories (Yellowknife)42
    42 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in August in Northwest Territories (Yellowknife)4
    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.

Top Northwest Territories destinations

Below are average maximum temperatures at popular countries, regions and places in the Northwest Territories in August. Select a holiday destination to see more weather parameters.

All Northwest Territories destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in the Northwest Territories in August?

Daytime temperatures usually reach 18°C in Yellowknife, Northwest Territories in August, falling to 10°C at night.

How sunny is it in the Northwest Territories in August?

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

Does it rain in the Northwest Territories in August?

There are usually 10 days with some rain in Yellowknife, Northwest Territories in August and the average monthly rainfall is 42mm.

Northwest Territories August sunrise & sunset times

Browse the sunrise and sunset times for Northwest Territories in August 2025. Select a month to view Northwest Territories sunrise and sunset times for the next 12 months. The Northwest Territories sunrise and sunset times shown below are for Yellowknife.

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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