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Northwest Territories

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Northwest Territories Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Northwest Territories year round climate

  • Spring (March–May): Average -4.0–8.2°C, cold climate, windy, rainfall gradually increases. Common activities: Aurora viewing (if later in spring), snow activities (e.g., snowshoeing, depending on snow conditions). Recommended clothing: Warm jacket, hat, scarf, gloves, waterproof pants and shoes.
  • Summer (June–August): Average 10.9–15.5°C, cool climate, June has the most rainfall, which gradually decreases afterwards. Common activities: Hiking, boating, fishing, wildlife viewing. Recommended clothing: Lightweight warm jacket, long pants, waterproof jacket.
  • Autumn (September–November): Average 10.2–-4.9°C, cold climate, decreasing rainfall, snow begins to fall. Common activities: Aurora viewing, autumn hiking (depending on weather conditions). Recommended clothing: Warm jacket, hat, scarf, gloves, waterproof pants and shoes.
  • Winter (December–February): Average -6.8–-5.3°C, very cold climate, dry, little snowfall. Common activities: Snow activities (sledding, snowmobiling), aurora viewing. Recommended clothing: Heavy warm jacket, hat, scarf, gloves, waterproof pants and shoes, layered clothing.

Northwest Territories climatological average

Annual average temperature: approx. 3.2°C / Annual rainfall: approx. 603 mm / Summer humidity: 60%–70% / Rainiest month: June

Northwest Territories monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
-6.8°C
17
February
-5.3°C
25.3
March
-4°C
17.1
April
1.5°C
30.1
May
8.2°C
101.5
June
10.9°C
159.7
July
15.5°C
67.5
August
14.6°C
65.8
September
10.2°C
20.9
October
4.6°C
51.1
November
-4.9°C
37.3
December
-6°C
10.4

Northwest Territories weather for the next seven days

5/16
Saturday
Sunny
-1.9°C/-11.1°C
5/17
Sunday
Sunny
4.9°C/-7°C
5/18
Monday
Patchy rain nearby
12.4°C/0°C
5/19
Tuesday
Patchy rain nearby
8.8°C/2.6°C
5/20
Wednesday
Patchy rain nearby
6.4°C/-0.2°C
5/21
Thursday
Patchy rain nearby
2.9°C/0.1°C
5/22
Friday
Sunny
4°C/-3.1°C