Nuuk Weather in September

With daytime temperatures of 7°C (45°F) and nighttime lows of 2°C (36°F), September in Nuuk brings low temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Nuuk in September

With this being the rainiest month, having an umbrella is essential to avoid unexpected rain. Typically around 14 days of rainfall are expected, averaging 113 mm (4.4 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Nuuk in September

Expect highs of 7°C (45°F) in Nuuk in September, with nights dropping to around 2°C (36°F). The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. Nights drop to 2°C (36°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Nuuk in September

The month experiences a moderate amount of sunlight, with 143 hours of sunshine. This provides a nice balance between sunshine and clouds.

Wind Speed in Nuuk in September

Average wind conditions reach 5 m/s (10 knots) in September. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.

Average water temperature in September

At 1°C (34°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Nuuk.

Select a Month

Check the conditions for any month of the year.

• January
• February
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• May
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• October
• November
• December

For a detailed overview over the year and the best time to visit Greenland, check out our Nuuk's climate page.

Nuuk Temperature in September

Min Temperature 2°C (36°F)  

Max Temperature 7°C (45°F)  

Water Temperature 1°C (34°F)  

Chance of Rain 46%  

Precipitation 113 mm (4.4 in)  

Rainy days 14 days  

Humidity 83%  

Windspeed 5 m/s (10 knots)  

Sunshine 143 hours  

Percentage Sunshine  

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Nuuk typically drop from around 8°C (46°F) at the start of September to approximately 4°C (39°F) by the end. Nights are cold, with lows typically ranging from 1°C (34°F) to 4°C (39°F).

Average temperatures in September

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Historical weather for Nuuk in September

Browse day-by-day weather records for Nuuk spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Nuuk historical weather extremes in September

Our historical data for Nuuk spans 2006 to 2025, revealing these weather extremes.

• Nuuk recorded its highest September temperature of 22°C (72°F) on September 2, 2010.
• The coldest September day was on September 21, 2007, with a maximum of 0°C (32°F).
• Nighttime temperatures dropped to -3°C (27°F) on September 26, 2021, marking the coldest September night on record.
• The heaviest September precipitation occurred on September 23, 2022, when 47 mm (1.9 in) of precipitation fell.

What to Wear in Nuuk in September

Dress warmly and in layers for your trip to Nuuk in September. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. Expect water temperatures of around 1°C (34°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Nuuk in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Greenland, check out our Nuuk's climate page.

More climate data for Nuuk

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Nuuk climate overview or explore weather in Greenland.