See the northern lights
The northern lights, polar light or Aarora Borealis is a true spectacle of nature! Green, sometimes purple, red and yellow streaks of light colors the dark skies.
August in Sisimiut sees daytime temperatures around 9°C (48°F) and lows of 5°C (41°F) at night. With around 67 mm (2.6 in) of rainfall expected, it's worth packing a rain jacket.
If you're planning additional trips, our weather planner can help you find destinations that match your weather preferences.
Pick a month to see the average temperature, rainfall and sunshine in Sisimiut - and find the best time to visit.
47-year average (1976-2025)
Based on our historical records, temperatures in Sisimiut typically stay consistent throughout August, with daily highs averaging around 9°C (48°F). Nights are cold, with lows typically ranging from 3°C (37°F) to 5°C (41°F).
Browse day-by-day weather records for Sisimiut spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 22 years of weather records for Sisimiut, the following extremes were recorded between 2004 and 2026.
Find out more about the weather in Greenland and which places have the best travel conditions in this month. See all of Greenland in August →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Cold weather calls for smart layering in August. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. Bring sunglasses since you'll have some sunny periods throughout the month
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Sisimiut climate overview or explore weather in Greenland.
Where to go in August - average daytime high across popular destinations.
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See the northern lights
The northern lights, polar light or Aarora Borealis is a true spectacle of nature! Green, sometimes purple, red and yellow streaks of light colors the dark skies.
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